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90768496 = 24713312011
BaseRepresentation
bin1010110100100…
…00010001110000
320022210111222011
411122100101300
5141214042441
613001252304
72151343120
oct532202160
9208714864
1090768496
1147266795
1226494094
1315a60990
14c0aac80
157e7e581
hex5690470

90768496 has 80 divisors (see below), whose sum is σ = 223541248. Its totient is φ = 34732800.

The previous prime is 90768487. The next prime is 90768497. The reversal of 90768496 is 69486709.

90768496 = T168 + T169 + ... + T818.

It is a super-2 number, since 2×907684962 = 16477839732204032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90768497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44131 + ... + 46141.

Almost surely, 290768496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90768496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111770624).

90768496 is an abundant number, since it is smaller than the sum of its proper divisors (132772752).

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

90768496 is a wasteful number, since it uses less digits than its factorization.

90768496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2070 (or 2064 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 90768496 is about 9527.2501804036. The cubic root of 90768496 is about 449.4123951863.

The spelling of 90768496 in words is "ninety million, seven hundred sixty-eight thousand, four hundred ninety-six".

Divisors: 1 2 4 7 8 13 14 16 26 28 31 52 56 62 91 104 112 124 182 208 217 248 364 403 434 496 728 806 868 1456 1612 1736 2011 2821 3224 3472 4022 5642 6448 8044 11284 14077 16088 22568 26143 28154 32176 45136 52286 56308 62341 104572 112616 124682 183001 209144 225232 249364 366002 418288 436387 498728 732004 810433 872774 997456 1464008 1620866 1745548 2928016 3241732 3491096 5673031 6483464 6982192 11346062 12966928 22692124 45384248 90768496