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88904369 = 137648937
BaseRepresentation
bin1010100110010…
…01001010110001
320012021210212102
411103021022301
5140224414434
612453310145
72126450261
oct523111261
9205253772
1088904369
1146203194
1225935355
131555a348
14bb437a1
157c1207e
hex54c92b1

88904369 has 4 divisors (see below), whose sum is σ = 89553444. Its totient is φ = 88255296.

The previous prime is 88904357. The next prime is 88904381. The reversal of 88904369 is 96340988.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (88904357) and next prime (88904381).

It can be written as a sum of positive squares in 2 ways, for example, as 47430769 + 41473600 = 6887^2 + 6440^2 .

It is a cyclic number.

It is not a de Polignac number, because 88904369 - 220 = 87855793 is a prime.

It is a super-2 number, since 2×889043692 = 15807973654576322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88904399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324332 + ... + 324605.

It is an arithmetic number, because the mean of its divisors is an integer number (22388361).

Almost surely, 288904369 is an apocalyptic number.

It is an amenable number.

88904369 is a deficient number, since it is larger than the sum of its proper divisors (649075).

88904369 is a wasteful number, since it uses less digits than its factorization.

88904369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649074.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 88904369 is about 9428.9113369466. The cubic root of 88904369 is about 446.3145391255.

The spelling of 88904369 in words is "eighty-eight million, nine hundred four thousand, three hundred sixty-nine".

Divisors: 1 137 648937 88904369