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38668838 = 2131978277
BaseRepresentation
bin1001001110000…
…0101000100110
32200202120200012
42103200220212
534344400323
63500450222
7646452065
oct223405046
980676605
1038668838
111a91151a
1210b49972
13801b990
1451c81dc
1535dc678
hex24e0a26

38668838 has 16 divisors (see below), whose sum is σ = 65753520. Its totient is φ = 16907616.

The previous prime is 38668793. The next prime is 38668843. The reversal of 38668838 is 83886683.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38645 + ... + 39632.

It is an arithmetic number, because the mean of its divisors is an integer number (4109595).

Almost surely, 238668838 is an apocalyptic number.

38668838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

38668838 is a deficient number, since it is larger than the sum of its proper divisors (27084682).

38668838 is a wasteful number, since it uses less digits than its factorization.

38668838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78311.

The product of its digits is 1327104, while the sum is 50.

The square root of 38668838 is about 6218.4272931345. The cubic root of 38668838 is about 338.1585510126.

The spelling of 38668838 in words is "thirty-eight million, six hundred sixty-eight thousand, eight hundred thirty-eight".

Divisors: 1 2 13 19 26 38 247 494 78277 156554 1017601 1487263 2035202 2974526 19334419 38668838