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90244680 = 23351939581
BaseRepresentation
bin1010110000100…
…00011001001000
320021210220102120
411120100121020
5141100312210
612542131240
72144032011
oct530203110
9207726376
1090244680
1146a39189
1226280b20
1315909426
14bdb2008
157dc9270
hex5610648

90244680 has 64 divisors (see below), whose sum is σ = 284990400. Its totient is φ = 22798080.

The previous prime is 90244673. The next prime is 90244703. The reversal of 90244680 is 8644209.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17511 + ... + 22070.

It is an arithmetic number, because the mean of its divisors is an integer number (4452975).

Almost surely, 290244680 is an apocalyptic number.

It is an amenable number.

90244680 is an abundant number, since it is smaller than the sum of its proper divisors (194745720).

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

90244680 is a wasteful number, since it uses less digits than its factorization.

90244680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39614 (or 39610 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 90244680 is about 9499.7199958736. The cubic root of 90244680 is about 448.5462220371.

Adding to 90244680 its reverse (8644209), we get a palindrome (98888889).

The spelling of 90244680 in words is "ninety million, two hundred forty-four thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 19 20 24 30 38 40 57 60 76 95 114 120 152 190 228 285 380 456 570 760 1140 2280 39581 79162 118743 158324 197905 237486 316648 395810 474972 593715 752039 791620 949944 1187430 1504078 1583240 2256117 2374860 3008156 3760195 4512234 4749720 6016312 7520390 9024468 11280585 15040780 18048936 22561170 30081560 45122340 90244680