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72844914970 = 2543169406779
BaseRepresentation
bin100001111010111100…
…1010011000100011010
320222000200120002112201
41003311321103010122
52143141244234340
653244155200414
75156110363252
oct1036571230432
9228020502481
1072844914970
1128991067873
121214b74610a
136b3b96c5a9
1437507ac962
151d6526d79a
hex10f5e5311a

72844914970 has 16 divisors (see below), whose sum is σ = 134170169760. Its totient is φ = 28460338704.

The previous prime is 72844914959. The next prime is 72844914971. The reversal of 72844914970 is 7941944827.

It is not an unprimeable number, because it can be changed into a prime (72844914971) 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, 84702960 + ... + 84703819.

It is an arithmetic number, because the mean of its divisors is an integer number (8385635610).

Almost surely, 272844914970 is an apocalyptic number.

72844914970 is a deficient number, since it is larger than the sum of its proper divisors (61325254790).

72844914970 is a wasteful number, since it uses less digits than its factorization.

72844914970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169406829.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 72844914970 in words is "seventy-two billion, eight hundred forty-four million, nine hundred fourteen thousand, nine hundred seventy".

Divisors: 1 2 5 10 43 86 215 430 169406779 338813558 847033895 1694067790 7284491497 14568982994 36422457485 72844914970