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38678880643812 = 2233367499745511
BaseRepresentation
bin10001100101101101000001…
…11100001110101011100100
312001221122221200210002211000
420302312200330032223210
520032203321421100222
6214132455451313300
711101312501564113
oct1062664074165344
9161848850702730
1038678880643812
1111362691849002
124408286a4b830
131877530c28676
1497a0d410bc7a
154711d6b6e9ac
hex232da0f0eae4

38678880643812 has 48 divisors (see below), whose sum is σ = 100281318480000. Its totient is φ = 12892608053280.

The previous prime is 38678880643759. The next prime is 38678880643829. The reversal of 38678880643812 is 21834608887683.

38678880643812 is a `hidden beast` number, since 38 + 6 + 7 + 88 + 80 + 6 + 438 + 1 + 2 = 666.

It is a super-2 number, since 2×386788806438122 (a number of 28 digits) contains 22 as substring.

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, 903864 + ... + 8841647.

It is an arithmetic number, because the mean of its divisors is an integer number (2089194135000).

Almost surely, 238678880643812 is an apocalyptic number.

It is an amenable number.

38678880643812 is an abundant number, since it is smaller than the sum of its proper divisors (61602437836188).

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

38678880643812 is a wasteful number, since it uses less digits than its factorization.

38678880643812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782273 (or 9782265 counting only the distinct ones).

The product of its (nonzero) digits is 594542592, while the sum is 72.

The spelling of 38678880643812 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty million, six hundred forty-three thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 36749 73498 110247 146996 220494 330741 440988 661482 992223 1322964 1984446 3968892 9745511 19491022 29236533 38982044 58473066 87709599 116946132 175419198 263128797 350838396 526257594 1052515188 358137783739 716275567478 1074413351217 1432551134956 2148826702434 3223240053651 4297653404868 6446480107302 9669720160953 12892960214604 19339440321906 38678880643812