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68411504 = 247610817
BaseRepresentation
bin1000001001111…
…10000001110000
311202201122221102
410010332001300
5120003132004
610442143532
71460326310
oct404760160
9152648842
1068411504
1135686637
121aab1ba8
13112337a5
14912b440
15601511e
hex413e070

68411504 has 20 divisors (see below), whose sum is σ = 151482864. Its totient is φ = 29319168.

The previous prime is 68411501. The next prime is 68411507. The reversal of 68411504 is 40511486.

It is an interprime number because it is at equal distance from previous prime (68411501) and next prime (68411507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68411501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305297 + ... + 305520.

Almost surely, 268411504 is an apocalyptic number.

It is an amenable number.

68411504 is an abundant number, since it is smaller than the sum of its proper divisors (83071360).

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

68411504 is a wasteful number, since it uses less digits than its factorization.

68411504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610832 (or 610826 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 68411504 is about 8271.1247119119. The cubic root of 68411504 is about 408.9871967904.

The spelling of 68411504 in words is "sixty-eight million, four hundred eleven thousand, five hundred four".

Divisors: 1 2 4 7 8 14 16 28 56 112 610817 1221634 2443268 4275719 4886536 8551438 9773072 17102876 34205752 68411504