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74328680 = 2351858217
BaseRepresentation
bin1000110111000…
…10101001101000
312011212021210002
410123202221220
5123012004210
611213042132
71561532456
oct433425150
9164767702
1074328680
1138a58268
1220a86348
1312525b8a
149c2b9d6
1567d34a5
hex46e2a68

74328680 has 16 divisors (see below), whose sum is σ = 167239620. Its totient is φ = 29731456.

The previous prime is 74328679. The next prime is 74328697. The reversal of 74328680 is 8682347.

It can be written as a sum of positive squares in 2 ways, for example, as 72012196 + 2316484 = 8486^2 + 1522^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 929069 + ... + 929148.

Almost surely, 274328680 is an apocalyptic number.

It is an amenable number.

74328680 is an abundant number, since it is smaller than the sum of its proper divisors (92910940).

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

74328680 is a wasteful number, since it uses less digits than its factorization.

74328680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858228 (or 1858224 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 74328680 is about 8621.4082376373. The cubic root of 74328680 is about 420.4543081018.

The spelling of 74328680 in words is "seventy-four million, three hundred twenty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 1858217 3716434 7432868 9291085 14865736 18582170 37164340 74328680