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90089579743 = 4147254918341
BaseRepresentation
bin101001111100111000…
…0011110010011011111
322121112111102211102121
41103321300132103133
52434000413022433
6105215300203411
76336334535662
oct1237160362337
9277474384377
1090089579743
1135230245739
1215562999567
138659557b47
144508b796d9
152524173c2d
hex14f9c1e4df

90089579743 has 16 divisors (see below), whose sum is σ = 94292553600. Its totient is φ = 85983788800.

The previous prime is 90089579717. The next prime is 90089579753. The reversal of 90089579743 is 34797598009.

It is a cyclic number.

It is not a de Polignac number, because 90089579743 - 233 = 81499645151 is a prime.

It is a super-2 number, since 2×900895797432 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90089579753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4902753 + ... + 4921093.

It is an arithmetic number, because the mean of its divisors is an integer number (5893284600).

Almost surely, 290089579743 is an apocalyptic number.

90089579743 is a deficient number, since it is larger than the sum of its proper divisors (4202973857).

90089579743 is a wasteful number, since it uses less digits than its factorization.

90089579743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20978.

The product of its (nonzero) digits is 17146080, while the sum is 61.

The spelling of 90089579743 in words is "ninety billion, eighty-nine million, five hundred seventy-nine thousand, seven hundred forty-three".

Divisors: 1 41 47 1927 2549 18341 104509 119803 751981 862027 4911923 35343107 46751209 1916799569 2197306823 90089579743