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90548425830 = 23517451339341
BaseRepresentation
bin101010001010100011…
…0110101010001100110
322122201110211121221010
41110111012311101212
52440420344111310
6105333011003050
76353605630452
oct1242506652146
9278643747833
1090548425830
1135446253585
1215670599486
1387006310c5
14454da9b662
15254e5ad320
hex15151b5466

90548425830 has 64 divisors (see below), whose sum is σ = 230156365248. Its totient is φ = 22720266240.

The previous prime is 90548425823. The next prime is 90548425841. The reversal of 90548425830 is 3852484509.

It is a super-2 number, since 2×905484258302 (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 90548425830.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2281960 + ... + 2321300.

It is an arithmetic number, because the mean of its divisors is an integer number (3596193207).

Almost surely, 290548425830 is an apocalyptic number.

90548425830 is an abundant number, since it is smaller than the sum of its proper divisors (139607939418).

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

90548425830 is a wasteful number, since it uses less digits than its factorization.

90548425830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43881.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 90548425830 in words is "ninety billion, five hundred forty-eight million, four hundred twenty-five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 4513 9026 13539 22565 27078 39341 45130 67695 76721 78682 118023 135390 153442 196705 230163 236046 383605 393410 460326 590115 668797 767210 1150815 1180230 1337594 2006391 2301630 3343985 4012782 6687970 10031955 20063910 177545933 355091866 532637799 887729665 1065275598 1775459330 2663188995 3018280861 5326377990 6036561722 9054842583 15091404305 18109685166 30182808610 45274212915 90548425830