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64311450 = 23527232663
BaseRepresentation
bin1111010101010…
…1000010011010
311111000100201120
43311111002122
5112430431300
610214230110
71410431640
oct365250232
9144010646
1064311450
1133336165
1219655336
1310429518
148781190
1559a53a0
hex3d5509a

64311450 has 96 divisors (see below), whose sum is σ = 190273536. Its totient is φ = 14055360.

The previous prime is 64311433. The next prime is 64311461. The reversal of 64311450 is 5411346.

64311450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×643114502 = 8271925202205000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64311450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22819 + ... + 25481.

It is an arithmetic number, because the mean of its divisors is an integer number (1982016).

Almost surely, 264311450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64311450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95136768).

64311450 is an abundant number, since it is smaller than the sum of its proper divisors (125962086).

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

64311450 is a wasteful number, since it uses less digits than its factorization.

64311450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708 (or 2703 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 64311450 is about 8019.4420005384. The cubic root of 64311450 is about 400.6478044737.

Adding to 64311450 its reverse (5411346), we get a palindrome (69722796).

The spelling of 64311450 in words is "sixty-four million, three hundred eleven thousand, four hundred fifty".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 25 30 35 42 46 50 69 70 75 105 115 138 150 161 175 210 230 322 345 350 483 525 575 690 805 966 1050 1150 1610 1725 2415 2663 3450 4025 4830 5326 7989 8050 12075 13315 15978 18641 24150 26630 37282 39945 55923 61249 66575 79890 93205 111846 122498 133150 183747 186410 199725 279615 306245 367494 399450 428743 466025 559230 612490 857486 918735 932050 1286229 1398075 1531225 1837470 2143715 2572458 2796150 3062450 4287430 4593675 6431145 9187350 10718575 12862290 21437150 32155725 64311450