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74070372 = 2236172531
BaseRepresentation
bin1000110101000…
…11100101100100
312011101011110010
410122203211210
5122430222442
611203330220
71556405415
oct432434544
9164334403
1074070372
11388a1192
1220980970
131246542c
149ba180c
156781b9c
hex46a3964

74070372 has 12 divisors (see below), whose sum is σ = 172830896. Its totient is φ = 24690120.

The previous prime is 74070371. The next prime is 74070397. The reversal of 74070372 is 27307047.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (74070371) 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, 3086254 + ... + 3086277.

Almost surely, 274070372 is an apocalyptic number.

It is an amenable number.

74070372 is an abundant number, since it is smaller than the sum of its proper divisors (98760524).

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

74070372 is a wasteful number, since it uses less digits than its factorization.

74070372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6172538 (or 6172536 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 30.

The square root of 74070372 is about 8606.4145844829. The cubic root of 74070372 is about 419.9666867001.

The spelling of 74070372 in words is "seventy-four million, seventy thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 6172531 12345062 18517593 24690124 37035186 74070372