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74160868 = 2217264153
BaseRepresentation
bin1000110101110…
…01101011100100
312011112202120211
410122321223210
5122441121433
611205305204
71560233305
oct432715344
9164482524
1074160868
1138953181
1220a05204
1312497692
149bc67ac
15679d8cd
hex46b9ae4

74160868 has 18 divisors (see below), whose sum is σ = 137866946. Its totient is φ = 34898688.

The previous prime is 74160797. The next prime is 74160869. The reversal of 74160868 is 86806147.

It can be written as a sum of positive squares in 3 ways, for example, as 54730404 + 19430464 = 7398^2 + 4408^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 74160868.

It is not an unprimeable number, because it can be changed into a prime (74160869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30921 + ... + 33232.

Almost surely, 274160868 is an apocalyptic number.

It is an amenable number.

74160868 is a deficient number, since it is larger than the sum of its proper divisors (63706078).

74160868 is a wasteful number, since it uses less digits than its factorization.

74160868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64191 (or 64172 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 74160868 is about 8611.6704535183. The cubic root of 74160868 is about 420.1376495156.

The spelling of 74160868 in words is "seventy-four million, one hundred sixty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 34 68 289 578 1156 64153 128306 256612 1090601 2181202 4362404 18540217 37080434 74160868