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38678855092 = 22181307174019
BaseRepresentation
bin100100000001011100…
…000111110110110100
310200211121002102101121
4210001130013312310
51113203241330332
625434022033324
72536332562243
oct440134076664
9120747072347
1038678855092
1115449229349
1275b5578844
133855453007
141c2cd4495a
151015a1b797
hex901707db4

38678855092 has 24 divisors (see below), whose sum is σ = 68284055840. Its totient is φ = 19169822880.

The previous prime is 38678855087. The next prime is 38678855101. The reversal of 38678855092 is 29055887683.

It is a self number, because there is not a number n which added to its sum of digits gives 38678855092.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135259 + ... + 309277.

Almost surely, 238678855092 is an apocalyptic number.

It is an amenable number.

38678855092 is a deficient number, since it is larger than the sum of its proper divisors (29605200748).

38678855092 is a wasteful number, since it uses less digits than its factorization.

38678855092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174511 (or 174509 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 61.

The spelling of 38678855092 in words is "thirty-eight billion, six hundred seventy-eight million, eight hundred fifty-five thousand, ninety-two".

Divisors: 1 2 4 181 307 362 614 724 1228 55567 111134 174019 222268 348038 696076 31497439 53423833 62994878 106847666 125989756 213695332 9669713773 19339427546 38678855092