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38621614512 = 24313293211241
BaseRepresentation
bin100011111110000001…
…110001000110110000
310200200121101022002010
4203332001301012300
51113044113131022
625424215122520
72535036210135
oct437601610660
9120617338063
1038621614512
1115419992688
12759a373440
133846631050
141c254c458c
1510109b150c
hex8fe0711b0

38621614512 has 80 divisors (see below), whose sum is σ = 107814536928. Its totient is φ = 11842959360.

The previous prime is 38621614463. The next prime is 38621614547. The reversal of 38621614512 is 21541612683.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 77212 + ... + 288452.

Almost surely, 238621614512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38621614512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53907268464).

38621614512 is an abundant number, since it is smaller than the sum of its proper divisors (69192922416).

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

38621614512 is a wasteful number, since it uses less digits than its factorization.

38621614512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211558 (or 211552 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The spelling of 38621614512 in words is "thirty-eight billion, six hundred twenty-one million, six hundred fourteen thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 293 312 586 624 879 1172 1758 2344 3516 3809 4688 7032 7618 11427 14064 15236 22854 30472 45708 60944 91416 182832 211241 422482 633723 844964 1267446 1689928 2534892 2746133 3379856 5069784 5492266 8238399 10139568 10984532 16476798 21969064 32953596 43938128 61893613 65907192 123787226 131814384 185680839 247574452 371361678 495148904 742723356 804616969 990297808 1485446712 1609233938 2413850907 2970893424 3218467876 4827701814 6436935752 9655403628 12873871504 19310807256 38621614512