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38969912 = 23192371157
BaseRepresentation
bin1001010010101…
…0001000111000
32201022212200002
42110222020320
534434014122
63511132132
7652144622
oct224521070
981285602
1038969912
111aaa7743
1211074048
1380c5a27
145265c12
15364b992
hex252a238

38969912 has 64 divisors (see below), whose sum is σ = 81907200. Its totient is φ = 17297280.

The previous prime is 38969897. The next prime is 38969927. The reversal of 38969912 is 21996983.

It is an interprime number because it is at equal distance from previous prime (38969897) and next prime (38969927).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248138 + ... + 248294.

It is an arithmetic number, because the mean of its divisors is an integer number (1279800).

Almost surely, 238969912 is an apocalyptic number.

It is an amenable number.

38969912 is an abundant number, since it is smaller than the sum of its proper divisors (42937288).

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

38969912 is a wasteful number, since it uses less digits than its factorization.

38969912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 272 counting only the distinct ones).

The product of its digits is 209952, while the sum is 47.

The square root of 38969912 is about 6242.5885656513. The cubic root of 38969912 is about 339.0339126598.

The spelling of 38969912 in words is "thirty-eight million, nine hundred sixty-nine thousand, nine hundred twelve".

Divisors: 1 2 4 8 19 23 38 46 71 76 92 142 152 157 184 284 314 437 568 628 874 1256 1349 1633 1748 2698 2983 3266 3496 3611 5396 5966 6532 7222 10792 11147 11932 13064 14444 22294 23864 28888 31027 44588 62054 68609 89176 124108 137218 211793 248216 256381 274436 423586 512762 548872 847172 1025524 1694344 2051048 4871239 9742478 19484956 38969912