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38479812 = 22374111173
BaseRepresentation
bin1001001011001…
…0011111000100
32200101222101020
42102302133010
534322323222
63452431140
7645034020
oct222623704
980358336
1038479812
111a7a24a8
1210a784b0
137c83927
145179380
1535a165c
hex24b27c4

38479812 has 48 divisors (see below), whose sum is σ = 105124992. Its totient is φ = 10725120.

The previous prime is 38479811. The next prime is 38479817. The reversal of 38479812 is 21897483.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (38479811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2143 + ... + 9030.

It is an arithmetic number, because the mean of its divisors is an integer number (2190104).

Almost surely, 238479812 is an apocalyptic number.

It is an amenable number.

38479812 is an abundant number, since it is smaller than the sum of its proper divisors (66645180).

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

38479812 is a wasteful number, since it uses less digits than its factorization.

38479812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11228 (or 11226 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 38479812 is about 6203.2098142816. The cubic root of 38479812 is about 337.6066406494.

The spelling of 38479812 in words is "thirty-eight million, four hundred seventy-nine thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 41 42 82 84 123 164 246 287 492 574 861 1148 1722 3444 11173 22346 33519 44692 67038 78211 134076 156422 234633 312844 458093 469266 916186 938532 1374279 1832372 2748558 3206651 5497116 6413302 9619953 12826604 19239906 38479812