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872890061361 = 3409711401843
BaseRepresentation
bin11001011001111000100…
…11010101001000110001
310002110002012122111201220
430230330103111020301
5103300134323430421
61505000011215253
7120031013046363
oct14547423251061
93073065574656
10872890061361
1130721075772a
12121209147529
136440c0950b6
1430368b26d33
1517a8c4cc3c6
hexcb3c4d5231

872890061361 has 8 divisors (see below), whose sum is σ = 1166699024160. Its totient is φ = 580503903072.

The previous prime is 872890061311. The next prime is 872890061371. The reversal of 872890061361 is 163160098278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 872890061361 - 29 = 872890060849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (872890061311) 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 7 ways as a sum of consecutive naturals, for example, 355699695 + ... + 355702148.

It is an arithmetic number, because the mean of its divisors is an integer number (145837378020).

Almost surely, 2872890061361 is an apocalyptic number.

It is an amenable number.

872890061361 is a deficient number, since it is larger than the sum of its proper divisors (293808962799).

872890061361 is a wasteful number, since it uses less digits than its factorization.

872890061361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711402255.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 872890061361 in words is "eight hundred seventy-two billion, eight hundred ninety million, sixty-one thousand, three hundred sixty-one".

Divisors: 1 3 409 1227 711401843 2134205529 290963353787 872890061361