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90893868 = 223134011453
BaseRepresentation
bin1010110101011…
…10111000101100
320100000212221120
411122232320230
5141232100433
613004100540
72152404462
oct532567054
9210025846
1090893868
11473419aa
1226534750
1315aa5a70
14c100832
157ea67b3
hex56aee2c

90893868 has 48 divisors (see below), whose sum is σ = 229127136. Its totient is φ = 27878400.

The previous prime is 90893827. The next prime is 90893879. The reversal of 90893868 is 86839809.

It is a self number, because there is not a number n which added to its sum of digits gives 90893868.

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, 61830 + ... + 63282.

It is an arithmetic number, because the mean of its divisors is an integer number (4773482).

Almost surely, 290893868 is an apocalyptic number.

It is an amenable number.

90893868 is an abundant number, since it is smaller than the sum of its proper divisors (138233268).

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

90893868 is a wasteful number, since it uses less digits than its factorization.

90893868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874 (or 1872 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The square root of 90893868 is about 9533.8275629466. The cubic root of 90893868 is about 449.6192136751.

The spelling of 90893868 in words is "ninety million, eight hundred ninety-three thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 401 802 1203 1453 1604 2406 2906 4359 4812 5213 5812 8718 10426 15639 17436 18889 20852 31278 37778 56667 62556 75556 113334 226668 582653 1165306 1747959 2330612 3495918 6991836 7574489 15148978 22723467 30297956 45446934 90893868