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72891411201 = 32717355712007
BaseRepresentation
bin100001111100010101…
…0101010101100000001
320222010221001100101100
41003320222222230001
52143240200124301
653252535525013
75160213525630
oct1037052525401
9228127040340
1072891411201
1128a05335104
1212163229769
136b4849bc5b
143756a33517
151d693a5286
hex10f8aaab01

72891411201 has 48 divisors (see below), whose sum is σ = 121251596544. Its totient is φ = 41333680512.

The previous prime is 72891411181. The next prime is 72891411211. The reversal of 72891411201 is 10211419827.

It is not a de Polignac number, because 72891411201 - 25 = 72891411169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72891411211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6064740 + ... + 6076746.

It is an arithmetic number, because the mean of its divisors is an integer number (2526074928).

Almost surely, 272891411201 is an apocalyptic number.

It is an amenable number.

72891411201 is a deficient number, since it is larger than the sum of its proper divisors (48360185343).

72891411201 is a wasteful number, since it uses less digits than its factorization.

72891411201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12750 (or 12747 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The spelling of 72891411201 in words is "seventy-two billion, eight hundred ninety-one million, four hundred eleven thousand, two hundred one".

Divisors: 1 3 7 9 21 63 173 519 557 1211 1557 1671 3633 3899 5013 10899 11697 12007 35091 36021 84049 96361 108063 252147 289083 674527 756441 867249 2023581 2077211 6070743 6231633 6687899 14540477 18694899 20063697 43621431 46815293 60191091 130864293 140445879 421337637 1157006527 3471019581 8099045689 10413058743 24297137067 72891411201