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470513231 = 232889439
BaseRepresentation
bin11100000010110…
…111011001001111
31012210100112210222
4130002313121033
51430422410411
6114404421555
714442203456
oct3402673117
91183315728
10470513231
11221657611
121116a78bb
137662c8c6
14466bbb9d
152b4914db
hex1c0b764f

470513231 has 6 divisors (see below), whose sum is σ = 491860320. Its totient is φ = 450055628.

The previous prime is 470513227. The next prime is 470513261. The reversal of 470513231 is 132315074.

It is not a de Polignac number, because 470513231 - 22 = 470513227 is a prime.

It is a super-2 number, since 2×4705132312 = 442765401092118722, 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 470513231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470513261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 444191 + ... + 445248.

It is an arithmetic number, because the mean of its divisors is an integer number (81976720).

Almost surely, 2470513231 is an apocalyptic number.

470513231 is a deficient number, since it is larger than the sum of its proper divisors (21347089).

470513231 is an equidigital number, since it uses as much as digits as its factorization.

470513231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889485 (or 889462 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 470513231 is about 21691.3169494155. The cubic root of 470513231 is about 777.7809110977.

The spelling of 470513231 in words is "four hundred seventy million, five hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 23 529 889439 20457097 470513231