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38678880643830 = 23257200330651547
BaseRepresentation
bin10001100101101101000001…
…11100001110101011110110
312001221122221200210002211200
420302312200330032223312
520032203321421100310
6214132455451313330
711101312501564140
oct1062664074165366
9161848850702750
1038678880643830
1111362691849019
124408286a4b846
131877530c2868b
1497a0d410bc90
154711d6b6e9c0
hex232da0f0eaf6

38678880643830 has 96 divisors (see below), whose sum is σ = 114988914503424. Its totient is φ = 8836472893248.

The previous prime is 38678880643829. The next prime is 38678880643853. The reversal of 38678880643830 is 3834608887683.

38678880643830 is a `hidden beast` number, since 3 + 8 + 6 + 7 + 88 + 80 + 6 + 438 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14063884 + ... + 16587663.

It is an arithmetic number, because the mean of its divisors is an integer number (1197801192744).

Almost surely, 238678880643830 is an apocalyptic number.

38678880643830 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38678880643830 is an abundant number, since it is smaller than the sum of its proper divisors (76310033859594).

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

38678880643830 is a wasteful number, since it uses less digits than its factorization.

38678880643830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30653570 (or 30653567 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 72.

The spelling of 38678880643830 in words is "thirty-eight trillion, six hundred seventy-eight billion, eight hundred eighty million, six hundred forty-three thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 7 9 10 14 15 18 21 30 35 42 45 63 70 90 105 126 210 315 630 2003 4006 6009 10015 12018 14021 18027 20030 28042 30045 36054 42063 60090 70105 84126 90135 126189 140210 180270 210315 252378 420630 630945 1261890 30651547 61303094 91954641 153257735 183909282 214560829 275863923 306515470 429121658 459773205 551727846 643682487 919546410 1072804145 1287364974 1379319615 1931047461 2145608290 2758639230 3218412435 3862094922 6436824870 9655237305 19310474610 61395048641 122790097282 184185145923 306975243205 368370291846 429765340487 552555437769 613950486410 859530680974 920925729615 1105110875538 1289296021461 1841851459230 2148826702435 2578592042922 2762777188845 3867888064383 4297653404870 5525554377690 6446480107305 7735776128766 12892960214610 19339440321915 38678880643830