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67856196 = 22320632741
BaseRepresentation
bin1000000101101…
…10011101000100
311201200110012110
410002312131010
5114332344241
610422221020
71452524322
oct402663504
9151613173
1067856196
1135337401
121a884770
131109aac5
149024d12
155e55816
hex40b6744

67856196 has 24 divisors (see below), whose sum is σ = 158465664. Its totient is φ = 22599520.

The previous prime is 67856171. The next prime is 67856207. The reversal of 67856196 is 69165876.

It is an unprimeable number.

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, 23386 + ... + 26126.

It is an arithmetic number, because the mean of its divisors is an integer number (6602736).

Almost surely, 267856196 is an apocalyptic number.

It is an amenable number.

67856196 is an abundant number, since it is smaller than the sum of its proper divisors (90609468).

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

67856196 is a wasteful number, since it uses less digits than its factorization.

67856196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811 (or 4809 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 67856196 is about 8237.4872382299. The cubic root of 67856196 is about 407.8775824581.

The spelling of 67856196 in words is "sixty-seven million, eight hundred fifty-six thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 2063 2741 4126 5482 6189 8223 8252 10964 12378 16446 24756 32892 5654683 11309366 16964049 22618732 33928098 67856196