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68736020712 = 23317168470639
BaseRepresentation
bin100000000000011111…
…1000111000011101000
320120102022221122020220
41000000333013003220
52111232410130322
651324335250040
74652225351562
oct1000077070350
9216368848226
1068736020712
1127172767797
12113a3679920
136635611c08
143480bd0332
151bc468855c
hex1000fc70e8

68736020712 has 32 divisors (see below), whose sum is σ = 181948291200. Its totient is φ = 21564241664.

The previous prime is 68736020699. The next prime is 68736020713. The reversal of 68736020712 is 21702063786.

It is not an unprimeable number, because it can be changed into a prime (68736020713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84234912 + ... + 84235727.

It is an arithmetic number, because the mean of its divisors is an integer number (5685884100).

Almost surely, 268736020712 is an apocalyptic number.

It is an amenable number.

68736020712 is an abundant number, since it is smaller than the sum of its proper divisors (113212270488).

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

68736020712 is a wasteful number, since it uses less digits than its factorization.

68736020712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168470665 (or 168470661 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The spelling of 68736020712 in words is "sixty-eight billion, seven hundred thirty-six million, twenty thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 168470639 336941278 505411917 673882556 1010823834 1347765112 2021647668 2864000863 4043295336 5728001726 8592002589 11456003452 17184005178 22912006904 34368010356 68736020712