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8457053497 = 89191499997
BaseRepresentation
bin1111110000001010…
…00110010100111001
3210211101102211102121
413320011012110321
5114310001202442
63515104001241
7416400524434
oct77005062471
923741384377
108457053497
11364a871512
121780300221
13a4a13c489
145a328081b
153476cd967
hex1f8146539

8457053497 has 16 divisors (see below), whose sum is σ = 8622720000. Its totient is φ = 8293253760.

The previous prime is 8457053447. The next prime is 8457053519. The reversal of 8457053497 is 7943507548.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-8457053497 is a prime.

It is a super-2 number, since 2×84570534972 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8457053447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8482003 + ... + 8482999.

It is an arithmetic number, because the mean of its divisors is an integer number (538920000).

Almost surely, 28457053497 is an apocalyptic number.

It is an amenable number.

8457053497 is a deficient number, since it is larger than the sum of its proper divisors (165666503).

8457053497 is a wasteful number, since it uses less digits than its factorization.

8457053497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The square root of 8457053497 is about 91962.2395170975. The cubic root of 8457053497 is about 2037.3846319662.

The spelling of 8457053497 in words is "eight billion, four hundred fifty-seven million, fifty-three thousand, four hundred ninety-seven".

Divisors: 1 89 191 499 997 16999 44411 88733 95309 190427 497503 8482501 16948003 44277767 95023073 8457053497