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989950888795 = 51161295067329
BaseRepresentation
bin11100110011111011010…
…10111100101101011011
310111122020101020200110011
432121331222330231123
5112204404411420140
62034435511102351
7131343622500511
oct16317552745533
93448211220404
10989950888795
11351921517a10
1213ba386719b7
13724763746ab
1435cb197c4b1
151ab3e406cea
hexe67dabcb5b

989950888795 has 16 divisors (see below), whose sum is σ = 1317180561120. Its totient is φ = 708161587200.

The previous prime is 989950888781. The next prime is 989950888991. The reversal of 989950888795 is 597888059989.

It is not a de Polignac number, because 989950888795 - 213 = 989950880603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147530310 + ... + 147537019.

It is an arithmetic number, because the mean of its divisors is an integer number (82323785070).

Almost surely, 2989950888795 is an apocalyptic number.

989950888795 is a deficient number, since it is larger than the sum of its proper divisors (327229672325).

989950888795 is a wasteful number, since it uses less digits than its factorization.

989950888795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295067406.

The product of its (nonzero) digits is 4702924800, while the sum is 85.

The spelling of 989950888795 in words is "nine hundred eighty-nine billion, nine hundred fifty million, eight hundred eighty-eight thousand, seven hundred ninety-five".

Divisors: 1 5 11 55 61 305 671 3355 295067329 1475336645 3245740619 16228703095 17999107069 89995535345 197990177759 989950888795