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38312065 = 5113072269
BaseRepresentation
bin1001001000100…
…1100010000001
32200002110021101
42102021202001
534301441230
63445054401
7643434661
oct222114201
980073241
1038312065
111a698470
12109b7401
137c2547c
1451341a1
15356baca
hex2489881

38312065 has 16 divisors (see below), whose sum is σ = 50339520. Its totient is φ = 27760320.

The previous prime is 38312059. The next prime is 38312093. The reversal of 38312065 is 56021383.

It is not a de Polignac number, because 38312065 - 27 = 38311937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15751 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (3146220).

Almost surely, 238312065 is an apocalyptic number.

It is an amenable number.

38312065 is a deficient number, since it is larger than the sum of its proper divisors (12027455).

38312065 is a wasteful number, since it uses less digits than its factorization.

38312065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 38312065 is about 6189.6740625012. The cubic root of 38312065 is about 337.1153441164.

The spelling of 38312065 in words is "thirty-eight million, three hundred twelve thousand, sixty-five".

Divisors: 1 5 11 55 307 1535 2269 3377 11345 16885 24959 124795 696583 3482915 7662413 38312065