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872687665152 = 2163554799
BaseRepresentation
bin11001011001100000011…
…11010000000000000000
310002102120002210201100000
430230300033100000000
5103244231020241102
61504523541200000
7120023004522102
oct14546017200000
93072502721300
10872687665152
11307117488436
12121171400000
13643a917c224
1430349cbd572
1517a7984d01c
hexcb303d0000

872687665152 has 204 divisors, whose sum is σ = 2614499451200. Its totient is φ = 290890579968.

The previous prime is 872687665147. The next prime is 872687665207. The reversal of 872687665152 is 251566786278.

It is a self number, because there is not a number n which added to its sum of digits gives 872687665152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15897849 + ... + 15952647.

Almost surely, 2872687665152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 872687665152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307249725600).

872687665152 is an abundant number, since it is smaller than the sum of its proper divisors (1741811786048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872687665152 is an frugal number, since it uses more digits than its factorization.

872687665152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54846 (or 54804 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 872687665152 in words is "eight hundred seventy-two billion, six hundred eighty-seven million, six hundred sixty-five thousand, one hundred fifty-two".