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89390553 = 372608099
BaseRepresentation
bin1010101001111…
…11110111011001
320020012111210020
411110333313121
5140340444203
612511541053
72133543600
oct524776731
9206174706
1089390553
114650549a
1225b2a789
131569a725
14bc2ca37
157cab153
hex553fdd9

89390553 has 12 divisors (see below), whose sum is σ = 138646800. Its totient is φ = 51080232.

The previous prime is 89390551. The next prime is 89390563. The reversal of 89390553 is 35509398.

It is not a de Polignac number, because 89390553 - 21 = 89390551 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (89390551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 303903 + ... + 304196.

It is an arithmetic number, because the mean of its divisors is an integer number (11553900).

Almost surely, 289390553 is an apocalyptic number.

It is an amenable number.

89390553 is a deficient number, since it is larger than the sum of its proper divisors (49256247).

89390553 is a wasteful number, since it uses less digits than its factorization.

89390553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608116 (or 608109 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 89390553 is about 9454.6577410290. The cubic root of 89390553 is about 447.1266350917.

The spelling of 89390553 in words is "eighty-nine million, three hundred ninety thousand, five hundred fifty-three".

Divisors: 1 3 7 21 49 147 608099 1824297 4256693 12770079 29796851 89390553