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68583480 = 2335781647
BaseRepresentation
bin1000001011010…
…00000000111000
311210001101211220
410011220000320
5120024132410
610445552040
71461643560
oct405500070
9153041756
1068583480
1135793869
121ab75620
1311293b54
149173da0
15604b070
hex4168038

68583480 has 64 divisors (see below), whose sum is σ = 235146240. Its totient is φ = 15676032.

The previous prime is 68583479. The next prime is 68583511. The reversal of 68583480 is 8438586.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39984 + ... + 41663.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 268583480 is an apocalyptic number.

68583480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68583480 is an abundant number, since it is smaller than the sum of its proper divisors (166562760).

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

68583480 is a wasteful number, since it uses less digits than its factorization.

68583480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81668 (or 81664 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 68583480 is about 8281.5143542712. The cubic root of 68583480 is about 409.3296203219.

The spelling of 68583480 in words is "sixty-eight million, five hundred eighty-three thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 70 84 105 120 140 168 210 280 420 840 81647 163294 244941 326588 408235 489882 571529 653176 816470 979764 1143058 1224705 1632940 1714587 1959528 2286116 2449410 2857645 3265880 3429174 4572232 4898820 5715290 6858348 8572935 9797640 11430580 13716696 17145870 22861160 34291740 68583480