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77485092 = 2236457091
BaseRepresentation
bin1001001111001…
…01010000100100
312101210122120020
410213211100210
5124314010332
611404435140
71630420026
oct447452044
9171718506
1077485092
113a813773
1221b48ab0
131308c789
14a410016
156c0882c
hex49e5424

77485092 has 12 divisors (see below), whose sum is σ = 180798576. Its totient is φ = 25828360.

The previous prime is 77485087. The next prime is 77485123. The reversal of 77485092 is 29058477.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×774850923 (a number of 25 digits) contains 333 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3228534 + ... + 3228557.

It is an arithmetic number, because the mean of its divisors is an integer number (15066548).

Almost surely, 277485092 is an apocalyptic number.

It is an amenable number.

77485092 is an abundant number, since it is smaller than the sum of its proper divisors (103313484).

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

77485092 is a wasteful number, since it uses less digits than its factorization.

77485092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6457098 (or 6457096 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 77485092 is about 8802.5616726042. The cubic root of 77485092 is about 426.3236096047.

The spelling of 77485092 in words is "seventy-seven million, four hundred eighty-five thousand, ninety-two".

Divisors: 1 2 3 4 6 12 6457091 12914182 19371273 25828364 38742546 77485092