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74388012 = 22329321157
BaseRepresentation
bin1000110111100…
…01001000101100
312011222022011120
410123301020230
5123020404022
611214220540
71562200446
oct433611054
9164868146
1074388012
1138a988a6
1220ab4750
1312546b9a
149c45496
1567e5d5c
hex46f122c

74388012 has 24 divisors (see below), whose sum is σ = 174172656. Its totient is φ = 24710208.

The previous prime is 74388001. The next prime is 74388047. The reversal of 74388012 is 21088347.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7063 + ... + 14094.

It is an arithmetic number, because the mean of its divisors is an integer number (7257194).

Almost surely, 274388012 is an apocalyptic number.

It is an amenable number.

74388012 is an abundant number, since it is smaller than the sum of its proper divisors (99784644).

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

74388012 is a wasteful number, since it uses less digits than its factorization.

74388012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21457 (or 21455 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 74388012 is about 8624.8485204089. The cubic root of 74388012 is about 420.5661525932.

The spelling of 74388012 in words is "seventy-four million, three hundred eighty-eight thousand, twelve".

Divisors: 1 2 3 4 6 12 293 586 879 1172 1758 3516 21157 42314 63471 84628 126942 253884 6199001 12398002 18597003 24796004 37194006 74388012