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90074487248 = 2417332541361
BaseRepresentation
bin101001111100011011…
…0111001100111010000
322121111110001001102022
41103320312321213100
52433433032042443
6105214000511012
76336062336354
oct1237066714720
9277443031368
1090074487248
11352227774a9
121555991b468
1386563a2385
144506b6b464
152522b91e68
hex14f8db99d0

90074487248 has 20 divisors (see below), whose sum is σ = 175528106628. Its totient is φ = 44776911360.

The previous prime is 90074487211. The next prime is 90074487323. The reversal of 90074487248 is 84278447009.

It can be written as a sum of positive squares in 2 ways, for example, as 54937734544 + 35136752704 = 234388^2 + 187448^2 .

It is a super-2 number, since 2×900744872482 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90074487248.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16267913 + ... + 16273448.

Almost surely, 290074487248 is an apocalyptic number.

It is an amenable number.

90074487248 is a deficient number, since it is larger than the sum of its proper divisors (85453619380).

90074487248 is a wasteful number, since it uses less digits than its factorization.

90074487248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32541542 (or 32541536 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 90074487248 in words is "ninety billion, seventy-four million, four hundred eighty-seven thousand, two hundred forty-eight".

Divisors: 1 2 4 8 16 173 346 692 1384 2768 32541361 65082722 130165444 260330888 520661776 5629655453 11259310906 22518621812 45037243624 90074487248