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457514681 = 13170920593
BaseRepresentation
bin11011010001010…
…001111010111001
31011212220011011012
4123101101322321
51414110432211
6113222043305
714223545021
oct3321217271
91155804135
10457514681
11215289608
12109279535
1373a2b260
1444a96a81
152a274d8b
hex1b451eb9

457514681 has 8 divisors (see below), whose sum is σ = 493020360. Its totient is φ = 422053632.

The previous prime is 457514669. The next prime is 457514683. The reversal of 457514681 is 186415754.

It can be written as a sum of positive squares in 4 ways, for example, as 50282281 + 407232400 = 7091^2 + 20180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-457514681 is a prime.

It is a super-2 number, since 2×4575146812 = 418639366661063522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457514683) 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, 11921 + ... + 32513.

It is an arithmetic number, because the mean of its divisors is an integer number (61627545).

Almost surely, 2457514681 is an apocalyptic number.

It is an amenable number.

457514681 is a deficient number, since it is larger than the sum of its proper divisors (35505679).

457514681 is a wasteful number, since it uses less digits than its factorization.

457514681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22315.

The product of its digits is 134400, while the sum is 41.

The square root of 457514681 is about 21389.5928198739. The cubic root of 457514681 is about 770.5515141421.

The spelling of 457514681 in words is "four hundred fifty-seven million, five hundred fourteen thousand, six hundred eighty-one".

Divisors: 1 13 1709 20593 22217 267709 35193437 457514681