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88044440840 = 2352201111021
BaseRepresentation
bin101000111111111011…
…0111000110100001000
322102020222011000021022
41101333312320310020
52420303334101330
6104240321532012
76234552253616
oct1217766706410
9272228130238
1088044440840
11343808785a4
1215091aa4008
1383c1937b95
1443932d06b6
152454846ae5
hex147fdb8d08

88044440840 has 16 divisors (see below), whose sum is σ = 198099991980. Its totient is φ = 35217776320.

The previous prime is 88044440821. The next prime is 88044440851. The reversal of 88044440840 is 4804444088.

It can be written as a sum of positive squares in 2 ways, for example, as 78971116324 + 9073324516 = 281018^2 + 95254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 88044440791 and 88044440800.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100555471 + ... + 1100555550.

Almost surely, 288044440840 is an apocalyptic number.

It is an amenable number.

88044440840 is an abundant number, since it is smaller than the sum of its proper divisors (110055551140).

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

88044440840 is a wasteful number, since it uses less digits than its factorization.

88044440840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201111032 (or 2201111028 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

The spelling of 88044440840 in words is "eighty-eight billion, forty-four million, four hundred forty thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 2201111021 4402222042 8804444084 11005555105 17608888168 22011110210 44022220420 88044440840