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88198428 = 22315834643
BaseRepresentation
bin1010100000111…
…00110100011100
320010221221111110
411100130310130
5140034322203
612430222020
72120450163
oct520346434
9203857443
1088198428
114587086a
1225654910
1315370c26
14b9dc3da
157b22d03
hex541cd1c

88198428 has 24 divisors (see below), whose sum is σ = 205970688. Its totient is φ = 29374576.

The previous prime is 88198427. The next prime is 88198433. The reversal of 88198428 is 82489188.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88198427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16675 + ... + 21317.

It is an arithmetic number, because the mean of its divisors is an integer number (8582112).

Almost surely, 288198428 is an apocalyptic number.

It is an amenable number.

88198428 is an abundant number, since it is smaller than the sum of its proper divisors (117772260).

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

88198428 is a wasteful number, since it uses less digits than its factorization.

88198428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233 (or 6231 counting only the distinct ones).

The product of its digits is 294912, while the sum is 48.

The square root of 88198428 is about 9391.4018122962. The cubic root of 88198428 is about 445.1300852699.

The spelling of 88198428 in words is "eighty-eight million, one hundred ninety-eight thousand, four hundred twenty-eight".

Divisors: 1 2 3 4 6 12 1583 3166 4643 4749 6332 9286 9498 13929 18572 18996 27858 55716 7349869 14699738 22049607 29399476 44099214 88198428