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72885314069 = 684911064159
BaseRepresentation
bin100001111100001001…
…1011010001000010101
320222010111120120200122
41003320103122020111
52143232120022234
653252201121325
75160110643011
oct1037023321025
9228114516618
1072885314069
1128a01950257
1212161189245
136b47145999
143755cc7541
151d68a9d92e
hex10f84da215

72885314069 has 4 divisors (see below), whose sum is σ = 72886446720. Its totient is φ = 72884181420.

The previous prime is 72885314063. The next prime is 72885314071. The reversal of 72885314069 is 96041358827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96041358827 = 148316475717.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-72885314069 is a prime.

It is a super-2 number, since 2×728853140692 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72885314069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72885314063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463589 + ... + 600570.

It is an arithmetic number, because the mean of its divisors is an integer number (18221611680).

It is a 1-persistent number, because it is pandigital, but 2⋅72885314069 = 145770628138 is not.

Almost surely, 272885314069 is an apocalyptic number.

It is an amenable number.

72885314069 is a deficient number, since it is larger than the sum of its proper divisors (1132651).

72885314069 is a wasteful number, since it uses less digits than its factorization.

72885314069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132650.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 72885314069 in words is "seventy-two billion, eight hundred eighty-five million, three hundred fourteen thousand, sixty-nine".

Divisors: 1 68491 1064159 72885314069