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453053657 = 7213767489
BaseRepresentation
bin11011000000010…
…000110011011001
31011120111111210002
4123000100303121
51411440204112
6112542302345
714140615100
oct3300206331
91146444702
10453053657
11212811a11
121078879b5
1372b288b4
1444255037
1529b931c2
hex1b010cd9

453053657 has 12 divisors (see below), whose sum is σ = 530876340. Its totient is φ = 385491456.

The previous prime is 453053647. The next prime is 453053663. The reversal of 453053657 is 756350354.

It can be written as a sum of positive squares in 2 ways, for example, as 97693456 + 355360201 = 9884^2 + 18851^2 .

It is not a de Polignac number, because 453053657 - 28 = 453053401 is a prime.

It is a super-2 number, since 2×4530536572 = 410515232242147298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 453053657.

It is not an unprimeable number, because it can be changed into a prime (453053617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27032 + ... + 40457.

It is an arithmetic number, because the mean of its divisors is an integer number (44239695).

Almost surely, 2453053657 is an apocalyptic number.

It is an amenable number.

453053657 is a deficient number, since it is larger than the sum of its proper divisors (77822683).

453053657 is a wasteful number, since it uses less digits than its factorization.

453053657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67640 (or 67633 counting only the distinct ones).

The product of its (nonzero) digits is 189000, while the sum is 38.

The square root of 453053657 is about 21285.0571293572. The cubic root of 453053657 is about 768.0388938139.

The spelling of 453053657 in words is "four hundred fifty-three million, fifty-three thousand, six hundred fifty-seven".

Divisors: 1 7 49 137 959 6713 67489 472423 3306961 9245993 64721951 453053657