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8253431121 = 3131312815749
BaseRepresentation
bin1111010111111000…
…10101110101010001
3210022012021202001010
413223330111311101
5113400334243441
63442551401133
7411346002255
oct75374256521
923265252033
108253431121
113555934a61
1217240831a9
13a16bb7470
145841d8265
153348ab116
hex1ebf15d51

8253431121 has 32 divisors (see below), whose sum is σ = 11986128000. Its totient is φ = 5021452800.

The previous prime is 8253431111. The next prime is 8253431149. The reversal of 8253431121 is 1211343528.

It is not a de Polignac number, because 8253431121 - 213 = 8253422929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8253431101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1432755 + ... + 1438503.

It is an arithmetic number, because the mean of its divisors is an integer number (374566500).

Almost surely, 28253431121 is an apocalyptic number.

It is an amenable number.

8253431121 is a deficient number, since it is larger than the sum of its proper divisors (3732696879).

8253431121 is a wasteful number, since it uses less digits than its factorization.

8253431121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6177.

The product of its digits is 5760, while the sum is 30.

The square root of 8253431121 is about 90848.3963589892. The cubic root of 8253431121 is about 2020.9000923654.

Adding to 8253431121 its reverse (1211343528), we get a palindrome (9464774649).

The spelling of 8253431121 in words is "eight billion, two hundred fifty-three million, four hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 3 13 39 131 281 393 843 1703 3653 5109 5749 10959 17247 36811 74737 110433 224211 478543 753119 1435629 1615469 2259357 4846407 9790547 21001097 29371641 63003291 211626439 634879317 2751143707 8253431121