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68587401 = 3171678053
BaseRepresentation
bin1000001011010…
…00111110001001
311210001121020010
410011220332021
5120024244101
610450022133
71461661161
oct405507611
9153047203
1068587401
1135796803
121ab77949
131129587c
1491755a1
15604c2d6
hex4168f89

68587401 has 16 divisors (see below), whose sum is σ = 97421184. Its totient is φ = 42772224.

The previous prime is 68587339. The next prime is 68587423. The reversal of 68587401 is 10478586.

It is not a de Polignac number, because 68587401 - 27 = 68587273 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68587401.

It is not an unprimeable number, because it can be changed into a prime (68587471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4491 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (6088824).

Almost surely, 268587401 is an apocalyptic number.

It is an amenable number.

68587401 is a deficient number, since it is larger than the sum of its proper divisors (28833783).

68587401 is a wasteful number, since it uses less digits than its factorization.

68587401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8240.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 68587401 is about 8281.7510829534. The cubic root of 68587401 is about 409.3374207954.

The spelling of 68587401 in words is "sixty-eight million, five hundred eighty-seven thousand, four hundred one".

Divisors: 1 3 17 51 167 501 2839 8053 8517 24159 136901 410703 1344851 4034553 22862467 68587401