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920899000025 = 52831045942433
BaseRepresentation
bin11010110011010011101…
…10111001011011011001
310021001000000221021200022
431121221312321123121
5110042000121000100
61543015525320225
7123350510226524
oct15315166713331
93231000837608
10920899000025
11325607528944
1212a587266075
1368ac049a204
1432800c47bbb
1518e4c177e85
hexd669db96d9

920899000025 has 24 divisors (see below), whose sum is σ = 1155810502560. Its totient is φ = 727756323840.

The previous prime is 920899000019. The next prime is 920899000051. The reversal of 920899000025 is 520000998029.

It is not a de Polignac number, because 920899000025 - 24 = 920899000009 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 920899000025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21681209 + ... + 21723641.

It is an arithmetic number, because the mean of its divisors is an integer number (48158770940).

Almost surely, 2920899000025 is an apocalyptic number.

It is an amenable number.

920899000025 is a deficient number, since it is larger than the sum of its proper divisors (234911502535).

920899000025 is a wasteful number, since it uses less digits than its factorization.

920899000025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52985 (or 52980 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 920899000025 in words is "nine hundred twenty billion, eight hundred ninety-nine million, twenty-five", and thus it is an aban number.

Divisors: 1 5 25 83 415 2075 10459 42433 52295 212165 261475 868097 1060825 3521939 4340485 17609695 21702425 88048475 443806747 2219033735 11095168675 36835960001 184179800005 920899000025