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457923269 = 1213377513
BaseRepresentation
bin11011010010110…
…101101011000101
31011220122220122002
4123102311223011
51414212021034
6113234515045
714230166156
oct3322655305
91156586562
10457923269
11215538591
12109435a85
1373b4221b
1444b6192d
152a305e7e
hex1b4b5ac5

457923269 has 4 divisors (see below), whose sum is σ = 458301996. Its totient is φ = 457544544.

The previous prime is 457923251. The next prime is 457923293. The reversal of 457923269 is 962329754.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 962329754 = 2481164877.

It can be written as a sum of positive squares in 2 ways, for example, as 44289025 + 413634244 = 6655^2 + 20338^2 .

It is a cyclic number.

It is not a de Polignac number, because 457923269 - 224 = 441146053 is a prime.

It is a super-2 number, since 2×4579232692 = 419387440583292722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457923229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187544 + ... + 189969.

It is an arithmetic number, because the mean of its divisors is an integer number (114575499).

Almost surely, 2457923269 is an apocalyptic number.

It is an amenable number.

457923269 is a deficient number, since it is larger than the sum of its proper divisors (378727).

457923269 is a wasteful number, since it uses less digits than its factorization.

457923269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378726.

The product of its digits is 816480, while the sum is 47.

The square root of 457923269 is about 21399.1417818566. The cubic root of 457923269 is about 770.7808287692.

The spelling of 457923269 in words is "four hundred fifty-seven million, nine hundred twenty-three thousand, two hundred sixty-nine".

Divisors: 1 1213 377513 457923269