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38308930 = 2511536571
BaseRepresentation
bin1001001000100…
…0110001000010
32200002021222021
42102020301002
534301341210
63445032054
7643422562
oct222106102
980067867
1038308930
111a696080
12109b562a
137c23c0a
145132da2
15356abda
hex2488c42

38308930 has 32 divisors (see below), whose sum is σ = 76655808. Its totient is φ = 13665600.

The previous prime is 38308927. The next prime is 38308931. The reversal of 38308930 is 3980383.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38308931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2545 + ... + 9115.

It is an arithmetic number, because the mean of its divisors is an integer number (2395494).

Almost surely, 238308930 is an apocalyptic number.

38308930 is an abundant number, since it is smaller than the sum of its proper divisors (38346878).

38308930 is a wasteful number, since it uses less digits than its factorization.

38308930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 38308930 is about 6189.4208129679. The cubic root of 38308930 is about 337.1061487064.

The spelling of 38308930 in words is "thirty-eight million, three hundred eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 11 22 53 55 106 110 265 530 583 1166 2915 5830 6571 13142 32855 65710 72281 144562 348263 361405 696526 722810 1741315 3482630 3830893 7661786 19154465 38308930