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90756725274 = 23243586919979
BaseRepresentation
bin101010010000110000…
…1011011101000011010
322200020222210100001100
41110201201123220122
52441332210202044
6105405411332230
76362015302455
oct1244141335032
9280228710040
1090756725274
1135542894a86
121570a2b1076
138734832c07
14456d60049c
152562a06869
hex152185ba1a

90756725274 has 48 divisors (see below), whose sum is σ = 201256941600. Its totient is φ = 29542187808.

The previous prime is 90756725273. The next prime is 90756725281. The reversal of 90756725274 is 47252765709.

It is a happy number.

90756725274 is a `hidden beast` number, since 9 + 0 + 7 + 567 + 2 + 5 + 2 + 74 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 90756725274.

It is not an unprimeable number, because it can be changed into a prime (90756725273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4532617 + ... + 4552595.

It is an arithmetic number, because the mean of its divisors is an integer number (4192852950).

Almost surely, 290756725274 is an apocalyptic number.

90756725274 is an abundant number, since it is smaller than the sum of its proper divisors (110500216326).

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

90756725274 is a wasteful number, since it uses less digits than its factorization.

90756725274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25899 (or 25896 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The spelling of 90756725274 in words is "ninety billion, seven hundred fifty-six million, seven hundred twenty-five thousand, two hundred seventy-four".

Divisors: 1 2 3 6 9 18 43 86 129 258 387 774 5869 11738 17607 19979 35214 39958 52821 59937 105642 119874 179811 252367 359622 504734 757101 859097 1514202 1718194 2271303 2577291 4542606 5154582 7731873 15463746 117256751 234513502 351770253 703540506 1055310759 2110621518 5042040293 10084080586 15126120879 30252241758 45378362637 90756725274