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90982955874 = 23292631988177
BaseRepresentation
bin101010010111100000…
…0011011101101100010
322200211202111001002110
41110233000123231202
52442313114041444
6105444052300150
76400433236056
oct1245700335542
9280752431073
1090982955874
1135649563418
1215772011656
13876c672585
14459168dc66
1525777e2cb9
hex152f01bb62

90982955874 has 32 divisors (see below), whose sum is σ = 188956437120. Its totient is φ = 29170518272.

The previous prime is 90982955863. The next prime is 90982955929. The reversal of 90982955874 is 47855928909.

It is a happy number.

It is a super-2 number, since 2×909829558742 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948327 + ... + 1039850.

It is an arithmetic number, because the mean of its divisors is an integer number (5904888660).

Almost surely, 290982955874 is an apocalyptic number.

90982955874 is an abundant number, since it is smaller than the sum of its proper divisors (97973481246).

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

90982955874 is a wasteful number, since it uses less digits than its factorization.

90982955874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988474.

The product of its (nonzero) digits is 65318400, while the sum is 66.

The spelling of 90982955874 in words is "ninety billion, nine hundred eighty-two million, nine hundred fifty-five thousand, eight hundred seventy-four".

Divisors: 1 2 3 6 29 58 87 174 263 526 789 1578 7627 15254 22881 45762 1988177 3976354 5964531 11929062 57657133 115314266 172971399 345942798 522890551 1045781102 1568671653 3137343306 15163825979 30327651958 45491477937 90982955874