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470631 = 3773307
BaseRepresentation
bin1110010111001100111
3212220120210
41302321213
5110030011
614030503
74000050
oct1627147
9786523
10470631
112a1657
121a8433
131362a5
14c3727
15946a6
hex72e67

470631 has 16 divisors (see below), whose sum is σ = 729344. Its totient is φ = 264384.

The previous prime is 470627. The next prime is 470647. The reversal of 470631 is 136074.

470631 is nontrivially palindromic in base 5.

It is not a de Polignac number, because 470631 - 22 = 470627 is a prime.

It is a super-2 number, since 2×4706312 = 442987076322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 470598 and 470607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380 + ... + 1686.

It is an arithmetic number, because the mean of its divisors is an integer number (45584).

2470631 is an apocalyptic number.

470631 is a deficient number, since it is larger than the sum of its proper divisors (258713).

470631 is a wasteful number, since it uses less digits than its factorization.

470631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 470631 is about 686.0255097298. The cubic root of 470631 is about 77.7845798284.

The spelling of 470631 in words is "four hundred seventy thousand, six hundred thirty-one".

Divisors: 1 3 7 21 73 219 307 511 921 1533 2149 6447 22411 67233 156877 470631