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90297008712 = 23333259128273
BaseRepresentation
bin101010000011000011…
…1110000001001001000
322122001221202022111000
41110012013300021020
52434412013234322
6105252030135000
76344433624111
oct1240607601110
9278057668430
1090297008712
1135327342139
1215600351460
138690513691
144528533208
1525374993ac
hex15061f0248

90297008712 has 64 divisors (see below), whose sum is σ = 250903944000. Its totient is φ = 30089532672.

The previous prime is 90297008707. The next prime is 90297008719. The reversal of 90297008712 is 21780079209.

It is not an unprimeable number, because it can be changed into a prime (90297008719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639808 + ... + 768080.

It is an arithmetic number, because the mean of its divisors is an integer number (3920374125).

Almost surely, 290297008712 is an apocalyptic number.

It is an amenable number.

90297008712 is an abundant number, since it is smaller than the sum of its proper divisors (160606935288).

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

90297008712 is a wasteful number, since it uses less digits than its factorization.

90297008712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131547 (or 131537 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The spelling of 90297008712 in words is "ninety billion, two hundred ninety-seven million, eight thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 3259 6518 9777 13036 19554 26072 29331 39108 58662 78216 87993 117324 128273 175986 234648 256546 351972 384819 513092 703944 769638 1026184 1154457 1539276 2308914 3078552 3463371 4617828 6926742 9235656 13853484 27706968 418041707 836083414 1254125121 1672166828 2508250242 3344333656 3762375363 5016500484 7524750726 10033000968 11287126089 15049501452 22574252178 30099002904 45148504356 90297008712