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920310640092 = 223225564184447
BaseRepresentation
bin11010110010001101100…
…10011110110111011100
310020222111000211111120200
431121012302132313130
5110034244010440332
61542441310543500
7123330104240454
oct15310662366734
93228430744520
10920310640092
11325335400368
1212a442207b90
1368a2861883c
1432786a50d64
1518e156a917c
hexd646c9eddc

920310640092 has 18 divisors (see below), whose sum is σ = 2326340784768. Its totient is φ = 306770213352.

The previous prime is 920310640087. The next prime is 920310640097. The reversal of 920310640092 is 290046013029.

920310640092 is a `hidden beast` number, since 9 + 2 + 0 + 3 + 1 + 0 + 640 + 0 + 9 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (920310640087) and next prime (920310640097).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 25564184447 = 920310640092 / (9 + 2 + 0 + 3 + 1 + 0 + 6 + 4 + 0 + 0 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920310640097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12782092188 + ... + 12782092259.

Almost surely, 2920310640092 is an apocalyptic number.

It is an amenable number.

920310640092 is an abundant number, since it is smaller than the sum of its proper divisors (1406030144676).

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

920310640092 is a wasteful number, since it uses less digits than its factorization.

920310640092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25564184457 (or 25564184452 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 920310640092 in words is "nine hundred twenty billion, three hundred ten million, six hundred forty thousand, ninety-two".

Divisors: 1 2 3 4 6 9 12 18 36 25564184447 51128368894 76692553341 102256737788 153385106682 230077660023 306770213364 460155320046 920310640092