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72113460 = 22355772083
BaseRepresentation
bin1000100110001…
…01110100110100
312000200202001220
410103011310310
5121430112320
611053350340
71533645216
oct423056464
9160622056
1072113460
1137784a01
12201983b0
1311c2b7b3
1498125b6
1564e6e40
hex44c5d34

72113460 has 48 divisors (see below), whose sum is σ = 202364736. Its totient is φ = 19187712.

The previous prime is 72113449. The next prime is 72113479. The reversal of 72113460 is 6431127.

It is a super-2 number, since 2×721134602 = 10400702226343200, 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 72113460.

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, 33579 + ... + 35661.

It is an arithmetic number, because the mean of its divisors is an integer number (4215932).

Almost surely, 272113460 is an apocalyptic number.

It is an amenable number.

72113460 is an abundant number, since it is smaller than the sum of its proper divisors (130251276).

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

72113460 is a wasteful number, since it uses less digits than its factorization.

72113460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2672 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 72113460 is about 8491.9644370428. The cubic root of 72113460 is about 416.2351742864.

Adding to 72113460 its reverse (6431127), we get a palindrome (78544587).

The spelling of 72113460 in words is "seventy-two million, one hundred thirteen thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 577 1154 1731 2083 2308 2885 3462 4166 5770 6249 6924 8332 8655 10415 11540 12498 17310 20830 24996 31245 34620 41660 62490 124980 1201891 2403782 3605673 4807564 6009455 7211346 12018910 14422692 18028365 24037820 36056730 72113460