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72845763011 = 7172957207017
BaseRepresentation
bin100001111010111110…
…0100010000111000011
320222000202011011211122
41003311330202013003
52143142003404021
653244225302455
75156120524550
oct1036574420703
9228022134748
1072845763011
1128991596a2a
121214ba94a2b
136b3bba85a8
14375094da27
151d65389bab
hex10f5f221c3

72845763011 has 16 divisors (see below), whose sum is σ = 88179731136. Its totient is φ = 58746172416.

The previous prime is 72845762989. The next prime is 72845763031. The reversal of 72845763011 is 11036754827.

It is a cyclic number.

It is not a de Polignac number, because 72845763011 - 214 = 72845746627 is a prime.

It is a super-2 number, since 2×728457630112 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72845763031) 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, 248375 + ... + 455391.

It is an arithmetic number, because the mean of its divisors is an integer number (5511233196).

Almost surely, 272845763011 is an apocalyptic number.

72845763011 is a deficient number, since it is larger than the sum of its proper divisors (15333968125).

72845763011 is a wasteful number, since it uses less digits than its factorization.

72845763011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209998.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 72845763011 in words is "seventy-two billion, eight hundred forty-five million, seven hundred sixty-three thousand, eleven".

Divisors: 1 7 17 119 2957 20699 50269 207017 351883 1449119 3519289 24635023 612149269 4285044883 10406537573 72845763011