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38688429888 = 2632193535127
BaseRepresentation
bin100100000010000000…
…101001011101000000
310200212021002212112200
4210002000221131000
51113213214224023
625435003153200
72536510141143
oct440200513500
9120767085480
1038688429888
1115453678aa9
1275b8815800
133857426184
141c3031805a
1510167ad743
hex902029740

38688429888 has 84 divisors (see below), whose sum is σ = 116729926560. Its totient is φ = 12217395456.

The previous prime is 38688429853. The next prime is 38688429937. The reversal of 38688429888 is 88892488683.

38688429888 is a `hidden beast` number, since 386 + 8 + 84 + 2 + 98 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1756620 + ... + 1778507.

Almost surely, 238688429888 is an apocalyptic number.

38688429888 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38688429888 is an abundant number, since it is smaller than the sum of its proper divisors (78041496672).

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

38688429888 is a wasteful number, since it uses less digits than its factorization.

38688429888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535164 (or 3535151 counting only the distinct ones).

The product of its digits is 339738624, while the sum is 72.

The spelling of 38688429888 in words is "thirty-eight billion, six hundred eighty-eight million, four hundred twenty-nine thousand, eight hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 64 72 76 96 114 144 152 171 192 228 288 304 342 456 576 608 684 912 1216 1368 1824 2736 3648 5472 10944 3535127 7070254 10605381 14140508 21210762 28281016 31816143 42421524 56562032 63632286 67167413 84843048 113124064 127264572 134334826 169686096 201502239 226248128 254529144 268669652 339372192 403004478 509058288 537339304 604506717 678744384 806008956 1018116576 1074678608 1209013434 1612017912 2036233152 2149357216 2418026868 3224035824 4298714432 4836053736 6448071648 9672107472 12896143296 19344214944 38688429888