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90877488 = 24313145637
BaseRepresentation
bin1010110101010…
…10111000110000
320100000001110220
411122222320300
5141231034423
613003453040
72152305642
oct532527060
9210001426
1090877488
1147330669
1226527180
1315a9b480
14c0d8892
157ea19e3
hex56aae30

90877488 has 40 divisors (see below), whose sum is σ = 252827568. Its totient is φ = 27962112.

The previous prime is 90877487. The next prime is 90877499. The reversal of 90877488 is 88477809.

It is a self number, because there is not a number n which added to its sum of digits gives 90877488.

It is not an unprimeable number, because it can be changed into a prime (90877487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72195 + ... + 73442.

Almost surely, 290877488 is an apocalyptic number.

It is an amenable number.

90877488 is an abundant number, since it is smaller than the sum of its proper divisors (161950080).

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

90877488 is a wasteful number, since it uses less digits than its factorization.

90877488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145661 (or 145655 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 51.

The square root of 90877488 is about 9532.9684778667. The cubic root of 90877488 is about 449.5922033999.

The spelling of 90877488 in words is "ninety million, eight hundred seventy-seven thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 39 48 52 78 104 156 208 312 624 145637 291274 436911 582548 873822 1165096 1747644 1893281 2330192 3495288 3786562 5679843 6990576 7573124 11359686 15146248 22719372 30292496 45438744 90877488