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8470431 = 32941159
BaseRepresentation
bin100000010011…
…111110011111
3120221100020200
4200103332133
54132023211
6501314543
7131666064
oct40237637
916840220
108470431
114865a62
122a05a53
1319a75b8
1411a6c6b
15b24b56
hex813f9f

8470431 has 6 divisors (see below), whose sum is σ = 12235080. Its totient is φ = 5646948.

The previous prime is 8470421. The next prime is 8470433. The reversal of 8470431 is 1340748.

It is not a de Polignac number, because 8470431 - 27 = 8470303 is a prime.

It is a super-2 number, since 2×84704312 = 143496402651522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8470395 and 8470404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8470433) 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, 470571 + ... + 470588.

It is an arithmetic number, because the mean of its divisors is an integer number (2039180).

Almost surely, 28470431 is an apocalyptic number.

8470431 is a deficient number, since it is larger than the sum of its proper divisors (3764649).

8470431 is a wasteful number, since it uses less digits than its factorization.

8470431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941165 (or 941162 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 8470431 is about 2910.4004879054. The cubic root of 8470431 is about 203.8458321945.

The spelling of 8470431 in words is "eight million, four hundred seventy thousand, four hundred thirty-one".

Divisors: 1 3 9 941159 2823477 8470431