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38163808 = 252351853
BaseRepresentation
bin1001000110010…
…1010101100000
32122210220220101
42101211111200
534232220213
63441552144
7642246514
oct221452540
978726811
1038163808
111a5a7041
1210945654
137ba2b47
1450d6144
15353cbdd
hex2465560

38163808 has 24 divisors (see below), whose sum is σ = 78403248. Its totient is φ = 18251904.

The previous prime is 38163791. The next prime is 38163841. The reversal of 38163808 is 80836183.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 25191 + ... + 26662.

It is an arithmetic number, because the mean of its divisors is an integer number (3266802).

Almost surely, 238163808 is an apocalyptic number.

It is an amenable number.

38163808 is an abundant number, since it is smaller than the sum of its proper divisors (40239440).

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

38163808 is a wasteful number, since it uses less digits than its factorization.

38163808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51886 (or 51878 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 38163808 is about 6177.6862982835. The cubic root of 38163808 is about 336.6799345597.

The spelling of 38163808 in words is "thirty-eight million, one hundred sixty-three thousand, eight hundred eight".

Divisors: 1 2 4 8 16 23 32 46 92 184 368 736 51853 103706 207412 414824 829648 1192619 1659296 2385238 4770476 9540952 19081904 38163808