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88042590 = 23259471033
BaseRepresentation
bin1010011111101…
…10110001011110
320010200000201200
411033312301132
5140014330330
612423020330
72116230636
oct517666136
9203600650
1088042590
1145774779
122559a6a6
131531800c
14b99b6c6
157ae1a60
hex53f6c5e

88042590 has 48 divisors (see below), whose sum is σ = 229374288. Its totient is φ = 23430528.

The previous prime is 88042583. The next prime is 88042613. The reversal of 88042590 is 9524088.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84714 + ... + 85746.

It is an arithmetic number, because the mean of its divisors is an integer number (4778631).

Almost surely, 288042590 is an apocalyptic number.

88042590 is an abundant number, since it is smaller than the sum of its proper divisors (141331698).

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

88042590 is a wasteful number, since it uses less digits than its factorization.

88042590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 88042590 is about 9383.1012996770. The cubic root of 88042590 is about 444.8677635953.

The spelling of 88042590 in words is "eighty-eight million, forty-two thousand, five hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 947 1033 1894 2066 2841 3099 4735 5165 5682 6198 8523 9297 9470 10330 14205 15495 17046 18594 28410 30990 42615 46485 85230 92970 978251 1956502 2934753 4891255 5869506 8804259 9782510 14673765 17608518 29347530 44021295 88042590