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90916008 = 23313927253
BaseRepresentation
bin1010110101101…
…00010010101000
320100002000022120
411122310102220
5141233303013
613004351240
72152526151
oct532642250
9210060276
1090916008
11473575a7
1226545520
1315ab2b71
14c108928
157ead123
hex56b44a8

90916008 has 32 divisors (see below), whose sum is σ = 228933600. Its totient is φ = 30086208.

The previous prime is 90916003. The next prime is 90916009. The reversal of 90916008 is 80061909.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 90916008.

It is not an unprimeable number, because it can be changed into a prime (90916003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10291 + ... + 16962.

It is an arithmetic number, because the mean of its divisors is an integer number (7154175).

Almost surely, 290916008 is an apocalyptic number.

It is an amenable number.

90916008 is an abundant number, since it is smaller than the sum of its proper divisors (138017592).

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

90916008 is a wasteful number, since it uses less digits than its factorization.

90916008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27401 (or 27397 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 90916008 is about 9534.9886208637. The cubic root of 90916008 is about 449.6557169122.

The spelling of 90916008 in words is "ninety million, nine hundred sixteen thousand, eight".

Divisors: 1 2 3 4 6 8 12 24 139 278 417 556 834 1112 1668 3336 27253 54506 81759 109012 163518 218024 327036 654072 3788167 7576334 11364501 15152668 22729002 30305336 45458004 90916008