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65830968 = 2334723631
BaseRepresentation
bin1111101100100…
…0000000111000
311120212120010000
43323020000320
5113323042333
610310553000
71426361010
oct373100070
9146776100
1065830968
1134183865
121a068760
131083c048
148a58c40
155ba5713
hex3ec8038

65830968 has 160 divisors (see below), whose sum is σ = 220239360. Its totient is φ = 17962560.

The previous prime is 65830939. The next prime is 65830969. The reversal of 65830968 is 86903856.

65830968 is a `hidden beast` number, since 6 + 583 + 0 + 9 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65830969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 104013 + ... + 104643.

It is an arithmetic number, because the mean of its divisors is an integer number (1376496).

Almost surely, 265830968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65830968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110119680).

65830968 is an abundant number, since it is smaller than the sum of its proper divisors (154408392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65830968 is a wasteful number, since it uses less digits than its factorization.

65830968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 65830968 is about 8113.6285347556. The cubic root of 65830968 is about 403.7787076815.

It can be divided in two parts, 658 and 30968, that added together give a triangular number (31626 = T251).

The spelling of 65830968 in words is "sixty-five million, eight hundred thirty thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 23 24 27 28 36 42 46 54 56 63 69 72 81 84 92 108 126 138 161 162 168 184 189 207 216 252 276 322 324 378 414 483 504 552 567 621 631 644 648 756 828 966 1134 1242 1262 1288 1449 1512 1656 1863 1893 1932 2268 2484 2524 2898 3726 3786 3864 4347 4417 4536 4968 5048 5679 5796 7452 7572 8694 8834 11358 11592 13041 13251 14513 14904 15144 17037 17388 17668 22716 26082 26502 29026 34074 34776 35336 39753 43539 45432 51111 52164 53004 58052 68148 79506 87078 101591 102222 104328 106008 116104 119259 130617 136296 159012 174156 203182 204444 238518 261234 304773 318024 348312 357777 391851 406364 408888 477036 522468 609546 715554 783702 812728 914319 954072 1044936 1175553 1219092 1431108 1567404 1828638 2351106 2438184 2742957 2862216 3134808 3657276 4702212 5485914 7314552 8228871 9404424 10971828 16457742 21943656 32915484 65830968