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90069650 = 25211295647
BaseRepresentation
bin1010101111001…
…01101010010010
320021111000022222
411113211222102
5141024212100
612534301042
72142402506
oct527455222
9207430288
1090069650
1146929730
12261b7782
1315877868
14bd68306
157d92485
hex55e5a92

90069650 has 48 divisors (see below), whose sum is σ = 189095040. Its totient is φ = 31617600.

The previous prime is 90069647. The next prime is 90069667. The reversal of 90069650 is 5696009.

It is a super-2 number, since 2×900696502 = 16225083702245000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90069650.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13127 + ... + 18773.

It is an arithmetic number, because the mean of its divisors is an integer number (3939480).

Almost surely, 290069650 is an apocalyptic number.

90069650 is an abundant number, since it is smaller than the sum of its proper divisors (99025390).

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

90069650 is a wasteful number, since it uses less digits than its factorization.

90069650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699 (or 5694 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 90069650 is about 9490.5031478842. The cubic root of 90069650 is about 448.2560484917.

The spelling of 90069650 in words is "ninety million, sixty-nine thousand, six hundred fifty".

Divisors: 1 2 5 10 11 22 25 29 50 55 58 110 145 275 290 319 550 638 725 1450 1595 3190 5647 7975 11294 15950 28235 56470 62117 124234 141175 163763 282350 310585 327526 621170 818815 1552925 1637630 1801393 3105850 3602786 4094075 8188150 9006965 18013930 45034825 90069650