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431230012 = 221006710709
BaseRepresentation
bin11001101101000…
…000110000111100
31010001102202100221
4121231000300330
51340343330022
6110442431124
713454252233
oct3155006074
91101382327
10431230012
11201466544
121005024a4
136b4573b5
14413b3b1a
1527cd1cc7
hex19b40c3c

431230012 has 12 divisors (see below), whose sum is σ = 754797960. Its totient is φ = 215573456.

The previous prime is 431230001. The next prime is 431230027. The reversal of 431230012 is 210032134.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34914 + ... + 45622.

It is an arithmetic number, because the mean of its divisors is an integer number (62899830).

Almost surely, 2431230012 is an apocalyptic number.

It is an amenable number.

431230012 is a deficient number, since it is larger than the sum of its proper divisors (323567948).

431230012 is a wasteful number, since it uses less digits than its factorization.

431230012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20780 (or 20778 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 431230012 is about 20766.0783972323. The cubic root of 431230012 is about 755.5032313086.

Adding to 431230012 its reverse (210032134), we get a palindrome (641262146).

The spelling of 431230012 in words is "four hundred thirty-one million, two hundred thirty thousand, twelve".

Divisors: 1 2 4 10067 10709 20134 21418 40268 42836 107807503 215615006 431230012