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38639112 = 2334337441
BaseRepresentation
bin1001001101100…
…1011000001000
32200201001220020
42103121120020
534342422422
63500100440
7646266321
oct223313010
980631806
1038639112
111a8a1156
1210b34720
13800b2a5
1451bb448
1535d395c
hex24d9608

38639112 has 32 divisors (see below), whose sum is σ = 98846880. Its totient is φ = 12579840.

The previous prime is 38639093. The next prime is 38639143. The reversal of 38639112 is 21193683.

It is a super-2 number, since 2×386391122 = 2985961952297088, which contains 22 as substring.

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, 17689 + ... + 19752.

It is an arithmetic number, because the mean of its divisors is an integer number (3088965).

Almost surely, 238639112 is an apocalyptic number.

It is an amenable number.

38639112 is an abundant number, since it is smaller than the sum of its proper divisors (60207768).

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

38639112 is a wasteful number, since it uses less digits than its factorization.

38639112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37493 (or 37489 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 38639112 is about 6216.0366794285. The cubic root of 38639112 is about 338.0718776213.

The spelling of 38639112 in words is "thirty-eight million, six hundred thirty-nine thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 24 43 86 129 172 258 344 516 1032 37441 74882 112323 149764 224646 299528 449292 898584 1609963 3219926 4829889 6439852 9659778 12879704 19319556 38639112