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38678651472868 = 221119187924622847
BaseRepresentation
bin10001100101101100100110…
…10010000000101111100100
312001221122100201120000101021
420302312103102000233210
520032202334234112433
6214132421023340524
711101304016633211
oct1062662322005744
9161848321500337
1038678651472868
1111362584451530
124408222151744
1318774c55c9864
1497a0b18d4b08
154711c19a222d
hex232d93480be4

38678651472868 has 48 divisors (see below), whose sum is σ = 77768803123200. Its totient is φ = 16647013723680.

The previous prime is 38678651472841. The next prime is 38678651472911. The reversal of 38678651472868 is 86827415687683.

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, 10740580 + ... + 13882267.

It is an arithmetic number, because the mean of its divisors is an integer number (1620183398400).

Almost surely, 238678651472868 is an apocalyptic number.

38678651472868 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

38678651472868 is an abundant number, since it is smaller than the sum of its proper divisors (39090151650332).

38678651472868 is a wasteful number, since it uses less digits than its factorization.

38678651472868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24624760 (or 24624758 counting only the distinct ones).

The product of its digits is 5202247680, while the sum is 79.

The spelling of 38678651472868 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred fifty-one million, four hundred seventy-two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 1879 3758 7516 20669 35701 41338 71402 82676 142804 392711 785422 1570844 24622847 49245694 98491388 270851317 467834093 541702634 935668186 1083405268 1871336372 5146175023 10292350046 20584700092 46266329513 92532659026 185065318052 508929624643 879060260747 1017859249286 1758120521494 2035718498572 3516241042988 9669662868217 19339325736434 38678651472868