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469885457 = 17157176053
BaseRepresentation
bin11100000000011…
…110001000010001
31012202011122200002
4130000132020101
51430242313312
6114343135345
714433650306
oct3400361021
91182148602
10469885457
11221268998
12111444555
137646cc42
14465970ad
152b3ba4c2
hex1c01e211

469885457 has 8 divisors (see below), whose sum is σ = 500697576. Its totient is φ = 439425792.

The previous prime is 469885453. The next prime is 469885483. The reversal of 469885457 is 754588964.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 141514816 + 328370641 = 11896^2 + 18121^2 .

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

It is not a de Polignac number, because 469885457 - 22 = 469885453 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (469885453) 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, 85358 + ... + 90695.

It is an arithmetic number, because the mean of its divisors is an integer number (62587197).

Almost surely, 2469885457 is an apocalyptic number.

It is an amenable number.

469885457 is a deficient number, since it is larger than the sum of its proper divisors (30812119).

469885457 is a wasteful number, since it uses less digits than its factorization.

469885457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176227.

The product of its digits is 9676800, while the sum is 56.

The square root of 469885457 is about 21676.8414904017. The cubic root of 469885457 is about 777.4348436420.

The spelling of 469885457 in words is "four hundred sixty-nine million, eight hundred eighty-five thousand, four hundred fifty-seven".

Divisors: 1 17 157 2669 176053 2992901 27640321 469885457