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90876140 = 22529156683
BaseRepresentation
bin1010110101010…
…10100011101100
320022222222121222
411122222203230
5141231014030
613003442512
72152302005
oct532524354
9208888558
1090876140
114732a653
1226526438
1315a9a984
14c0d81ac
157ea13e5
hex56aa8ec

90876140 has 24 divisors (see below), whose sum is σ = 197421840. Its totient is φ = 35096768.

The previous prime is 90876139. The next prime is 90876193. The reversal of 90876140 is 4167809.

It is a self number, because there is not a number n which added to its sum of digits gives 90876140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77762 + ... + 78921.

It is an arithmetic number, because the mean of its divisors is an integer number (8225910).

Almost surely, 290876140 is an apocalyptic number.

It is an amenable number.

90876140 is an abundant number, since it is smaller than the sum of its proper divisors (106545700).

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

90876140 is a wasteful number, since it uses less digits than its factorization.

90876140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156721 (or 156719 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 90876140 is about 9532.8977755979. The cubic root of 90876140 is about 449.5899804317.

The spelling of 90876140 in words is "ninety million, eight hundred seventy-six thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 156683 313366 626732 783415 1566830 3133660 4543807 9087614 18175228 22719035 45438070 90876140