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470721431 = 678118663
BaseRepresentation
bin11100000011101…
…010001110010111
31012210202010102002
4130003222032113
51431001041211
6114413105515
714444031455
oct3403521627
91183663362
10470721431
11221789a84
1211178829b
13766a35bb
14467339d5
152b4d303b
hex1c0ea397

470721431 has 8 divisors (see below), whose sum is σ = 478391424. Its totient is φ = 463070520.

The previous prime is 470721413. The next prime is 470721439. The reversal of 470721431 is 134127074.

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

It is a cyclic number.

It is not a de Polignac number, because 470721431 - 26 = 470721367 is a prime.

It is a super-2 number, since 2×4707214312 = 443157331205375522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 470721394 and 470721403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470721439) 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, 50006 + ... + 58668.

It is an arithmetic number, because the mean of its divisors is an integer number (59798928).

Almost surely, 2470721431 is an apocalyptic number.

470721431 is a deficient number, since it is larger than the sum of its proper divisors (7669993).

470721431 is an equidigital number, since it uses as much as digits as its factorization.

470721431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9541.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 470721431 is about 21696.1155739916. The cubic root of 470721431 is about 777.8956157053.

The spelling of 470721431 in words is "four hundred seventy million, seven hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 67 811 8663 54337 580421 7025693 470721431