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38868651 = 326183853
BaseRepresentation
bin1001010001000…
…1011010101011
32201010201202200
42110101122223
534422244101
63505031243
7651243453
oct224213253
981121680
1038868651
111aa38658
1211025523
13808b903
14523ad63
15362b986
hex25116ab

38868651 has 24 divisors (see below), whose sum is σ = 57819216. Its totient is φ = 25151040.

The previous prime is 38868649. The next prime is 38868659. The reversal of 38868651 is 15686883.

It is not a de Polignac number, because 38868651 - 21 = 38868649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38868597 and 38868606.

It is not an unprimeable number, because it can be changed into a prime (38868659) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45141 + ... + 45993.

It is an arithmetic number, because the mean of its divisors is an integer number (2409134).

Almost surely, 238868651 is an apocalyptic number.

38868651 is a deficient number, since it is larger than the sum of its proper divisors (18950565).

38868651 is a wasteful number, since it uses less digits than its factorization.

38868651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 1000 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 38868651 is about 6234.4727924661. The cubic root of 38868651 is about 338.7400047885.

The spelling of 38868651 in words is "thirty-eight million, eight hundred sixty-eight thousand, six hundred fifty-one".

Divisors: 1 3 9 61 83 183 249 549 747 853 2559 5063 7677 15189 45567 52033 70799 156099 212397 468297 637191 4318739 12956217 38868651