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38616818372 = 221112715744017
BaseRepresentation
bin100011111101101111…
…011110001011000100
310200200021100122000022
4203331233132023010
51113041401141442
625423524234312
72534650353206
oct437557361304
9120607318008
1038616818372
1115417207230
12759883b998
133845641cb2
141c249d6776
1510103653d2
hex8fdbde2c4

38616818372 has 48 divisors (see below), whose sum is σ = 74778482688. Its totient is φ = 17303569920.

The previous prime is 38616818371. The next prime is 38616818377. The reversal of 38616818372 is 27381861683.

It is a super-2 number, since 2×386168183722 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38616818371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855308 + ... + 899324.

It is an arithmetic number, because the mean of its divisors is an integer number (1557885056).

Almost surely, 238616818372 is an apocalyptic number.

It is an amenable number.

38616818372 is a deficient number, since it is larger than the sum of its proper divisors (36161664316).

38616818372 is a wasteful number, since it uses less digits than its factorization.

38616818372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44316 (or 44314 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 53.

The spelling of 38616818372 in words is "thirty-eight billion, six hundred sixteen million, eight hundred eighteen thousand, three hundred seventy-two".

Divisors: 1 2 4 11 22 44 127 157 254 314 508 628 1397 1727 2794 3454 5588 6908 19939 39878 44017 79756 88034 176068 219329 438658 484187 877316 968374 1936748 5590159 6910669 11180318 13821338 22360636 27642676 61491749 76017359 122983498 152034718 245966996 304069436 877654963 1755309926 3510619852 9654204593 19308409186 38616818372