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89990884 = 2222497721
BaseRepresentation
bin1010101110100…
…10011011100100
320021100000021201
411113102123210
5141014202014
612532452244
72141624044
oct527223344
9207300251
1089990884
1146885535
122617a084
131584aa59
14bd47724
157d78e74
hex55d26e4

89990884 has 6 divisors (see below), whose sum is σ = 157484054. Its totient is φ = 44995440.

The previous prime is 89990869. The next prime is 89990893. The reversal of 89990884 is 48809998.

It can be written as a sum of positive squares in only one way, i.e., 71740900 + 18249984 = 8470^2 + 4272^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11248857 + ... + 11248864.

Almost surely, 289990884 is an apocalyptic number.

It is an amenable number.

89990884 is a deficient number, since it is larger than the sum of its proper divisors (67493170).

89990884 is a wasteful number, since it uses less digits than its factorization.

89990884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22497725 (or 22497723 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 55.

The square root of 89990884 is about 9486.3525129525. The cubic root of 89990884 is about 448.1253435946.

The spelling of 89990884 in words is "eighty-nine million, nine hundred ninety thousand, eight hundred eighty-four".

Divisors: 1 2 4 22497721 44995442 89990884