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67472868 = 22334916111
BaseRepresentation
bin1000000010110…
…00110111100100
311200221222101010
410001120313210
5114233112433
610410102220
71446336621
oct401306744
9150858333
1067472868
11350a5401
121a71a970
1310c95498
148d65348
155dcbe63
hex4058de4

67472868 has 24 divisors (see below), whose sum is σ = 157897600. Its totient is φ = 22425120.

The previous prime is 67472861. The next prime is 67472927. The reversal of 67472868 is 86827476.

It is a super-2 number, since 2×674728682 = 9105175832290848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67472861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3868 + ... + 12243.

Almost surely, 267472868 is an apocalyptic number.

It is an amenable number.

67472868 is an abundant number, since it is smaller than the sum of its proper divisors (90424732).

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

67472868 is a wasteful number, since it uses less digits than its factorization.

67472868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16467 (or 16465 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 67472868 is about 8214.1869956801. The cubic root of 67472868 is about 407.1080814162.

The spelling of 67472868 in words is "sixty-seven million, four hundred seventy-two thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 349 698 1047 1396 2094 4188 16111 32222 48333 64444 96666 193332 5622739 11245478 16868217 22490956 33736434 67472868