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79245090 = 23251794919
BaseRepresentation
bin1001011100100…
…10111100100010
312112010001211100
410232102330202
5130241320330
611510255230
71651400151
oct456227442
9175101740
1079245090
1140806011
1222657516
13135578b2
14a74b598
156e55060
hex4b92f22

79245090 has 48 divisors (see below), whose sum is σ = 207230400. Its totient is φ = 21009696.

The previous prime is 79245053. The next prime is 79245107. The reversal of 79245090 is 9054297.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 13651 + ... + 18569.

It is an arithmetic number, because the mean of its divisors is an integer number (4317300).

Almost surely, 279245090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79245090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103615200).

79245090 is an abundant number, since it is smaller than the sum of its proper divisors (127985310).

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

79245090 is a wasteful number, since it uses less digits than its factorization.

79245090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111 (or 5108 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 79245090 is about 8901.9711300363. The cubic root of 79245090 is about 429.5273154498.

The spelling of 79245090 in words is "seventy-nine million, two hundred forty-five thousand, ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 179 358 537 895 1074 1611 1790 2685 3222 4919 5370 8055 9838 14757 16110 24595 29514 44271 49190 73785 88542 147570 221355 442710 880501 1761002 2641503 4402505 5283006 7924509 8805010 13207515 15849018 26415030 39622545 79245090