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90981004 = 2229823953
BaseRepresentation
bin1010110110001…
…00001010001100
320100012022110211
411123010022030
5141242343004
613010012204
72153216512
oct533041214
9210168424
1090981004
11473a1414
1226577064
1315b0661a
14c1244b2
157ec2504
hex56c428c

90981004 has 24 divisors (see below), whose sum is σ = 165080160. Its totient is φ = 43822464.

The previous prime is 90980999. The next prime is 90981017. The reversal of 90981004 is 40018909.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94992 + ... + 95944.

It is an arithmetic number, because the mean of its divisors is an integer number (6878340).

Almost surely, 290981004 is an apocalyptic number.

It is an amenable number.

90981004 is a deficient number, since it is larger than the sum of its proper divisors (74099156).

90981004 is a wasteful number, since it uses less digits than its factorization.

90981004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809 (or 1807 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 90981004 is about 9538.3963012657. The cubic root of 90981004 is about 449.7628445855.

The spelling of 90981004 in words is "ninety million, nine hundred eighty-one thousand, four".

Divisors: 1 2 4 29 58 116 823 953 1646 1906 3292 3812 23867 27637 47734 55274 95468 110548 784319 1568638 3137276 22745251 45490502 90981004