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387112616664 = 2331710916015437
BaseRepresentation
bin1011010001000011011…
…01011100001011011000
31101000012112200110112220
411220201231130023120
522320301312213124
6453500450504040
736653003643564
oct5504155341330
91330175613486
10387112616664
1113a19aa86574
1263037295020
132a6736a9a27
1414a447906a4
15a10a2de879
hex5a21b5c2d8

387112616664 has 128 divisors (see below), whose sum is σ = 1034947108800. Its totient is φ = 120235622400.

The previous prime is 387112616623. The next prime is 387112616677. The reversal of 387112616664 is 466616211783.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71196954 + ... + 71202390.

Almost surely, 2387112616664 is an apocalyptic number.

387112616664 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 387112616664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517473554400).

387112616664 is an abundant number, since it is smaller than the sum of its proper divisors (647834492136).

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

387112616664 is a wasteful number, since it uses less digits than its factorization.

387112616664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7173 (or 7169 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The spelling of 387112616664 in words is "three hundred eighty-seven billion, one hundred twelve million, six hundred sixteen thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 109 136 204 218 327 408 436 654 872 1308 1601 1853 2616 3202 3706 4803 5437 5559 6404 7412 9606 10874 11118 12808 14824 16311 19212 21748 22236 27217 32622 38424 43496 44472 54434 65244 81651 92429 108868 130488 163302 174509 184858 217736 277287 326604 349018 369716 523527 554574 592633 653208 698036 739432 1047054 1109148 1185266 1396072 1777899 2094108 2218296 2370532 2966653 3555798 4188216 4741064 5933306 7111596 8704637 8899959 10074761 11866612 14223192 17409274 17799918 20149522 23733224 26113911 30224283 34818548 35599836 40299044 52227822 60448566 69637096 71199672 80598088 104455644 120897132 147978829 208911288 241794264 295957658 443936487 591915316 887872974 948805433 1183830632 1775745948 1897610866 2846416299 3551491896 3795221732 5692832598 7590443464 11385665196 16129692361 22771330392 32259384722 48389077083 64518769444 96778154166 129037538888 193556308332 387112616664