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72901080004 = 22127210632
BaseRepresentation
bin100001111100100111…
…1100011001111000100
320222011121020120111011
41003321033203033010
52143300134030004
653253523052004
75160361645564
oct1037117431704
9228147216434
1072901080004
1128a0a839455
1212166511004
136b4a4a5b3c
14375802cda4
151d6a165004
hex10f93e33c4

72901080004 has 27 divisors (see below), whose sum is σ = 128710424367. Its totient is φ = 36129507624.

The previous prime is 72901080001. The next prime is 72901080011. The reversal of 72901080004 is 40008010927.

The square root of 72901080004 is 270002.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72901080001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 68579977 + ... + 68581039.

Almost surely, 272901080004 is an apocalyptic number.

72901080004 is the 270002-nd square number.

It is an amenable number.

72901080004 is a deficient number, since it is larger than the sum of its proper divisors (55809344363).

72901080004 is an equidigital number, since it uses as much as digits as its factorization.

72901080004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384 (or 1192 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 72901080004 in words is "seventy-two billion, nine hundred one million, eighty thousand, four".

Divisors: 1 2 4 127 254 508 1063 2126 4252 16129 32258 64516 135001 270002 540004 1129969 2259938 4519876 17145127 34290254 68580508 143506063 287012126 574024252 18225270001 36450540002 72901080004