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38040872 = 235578537
BaseRepresentation
bin1001000100011…
…1010100101000
32122120200021012
42101013110220
534214301442
63435203052
7641225222
oct221072450
978520235
1038040872
111a522741
12108a6488
137b5bbbc
1450a3412
153516582
hex2447528

38040872 has 16 divisors (see below), whose sum is σ = 71463060. Its totient is φ = 18984064.

The previous prime is 38040859. The next prime is 38040889. The reversal of 38040872 is 27804083.

It can be written as a sum of positive squares in 2 ways, for example, as 38019556 + 21316 = 6166^2 + 146^2 .

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, 188 + ... + 8724.

Almost surely, 238040872 is an apocalyptic number.

It is an amenable number.

38040872 is a deficient number, since it is larger than the sum of its proper divisors (33422188).

38040872 is a wasteful number, since it uses less digits than its factorization.

38040872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100 (or 9096 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 38040872 is about 6167.7282689820. The cubic root of 38040872 is about 336.3180331561.

The spelling of 38040872 in words is "thirty-eight million, forty thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 557 1114 2228 4456 8537 17074 34148 68296 4755109 9510218 19020436 38040872