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8912309121 = 33330085523
BaseRepresentation
bin10000100110011011…
…10000101110000001
3212000010002012202000
420103031300232001
5121223022342441
64032205414213
7433566243342
oct102315605601
925003065660
108912309121
113863847831
12188886a369
13ac05593c1
1460790a0c9
153726592b6
hex213370b81

8912309121 has 8 divisors (see below), whose sum is σ = 13203420960. Its totient is φ = 5941539396.

The previous prime is 8912309101. The next prime is 8912309167. The reversal of 8912309121 is 1219032198.

It is not a de Polignac number, because 8912309121 - 25 = 8912309089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8912309101) 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, 165042735 + ... + 165042788.

It is an arithmetic number, because the mean of its divisors is an integer number (1650427620).

Almost surely, 28912309121 is an apocalyptic number.

It is an amenable number.

8912309121 is a deficient number, since it is larger than the sum of its proper divisors (4291111839).

8912309121 is a wasteful number, since it uses less digits than its factorization.

8912309121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330085532 (or 330085526 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 8912309121 is about 94405.0269900920. The cubic root of 8912309121 is about 2073.3060444817.

The spelling of 8912309121 in words is "eight billion, nine hundred twelve million, three hundred nine thousand, one hundred twenty-one".

Divisors: 1 3 9 27 330085523 990256569 2970769707 8912309121