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431313868 = 221729218719
BaseRepresentation
bin11001101101010…
…101001111001100
31010001121000101201
4121231111033030
51340404020433
6110444315244
713455051556
oct3155251714
91101530351
10431313868
11201513547
12100542b24
136b48660b
14413d64d6
1527ceba7d
hex19b553cc

431313868 has 24 divisors (see below), whose sum is σ = 826761600. Its totient is φ = 195971328.

The previous prime is 431313829. The next prime is 431313887. The reversal of 431313868 is 868313134.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107388 + ... + 111331.

It is an arithmetic number, because the mean of its divisors is an integer number (34448400).

Almost surely, 2431313868 is an apocalyptic number.

It is an amenable number.

431313868 is a deficient number, since it is larger than the sum of its proper divisors (395447732).

431313868 is a wasteful number, since it uses less digits than its factorization.

431313868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218769 (or 218767 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 431313868 is about 20768.0973610969. The cubic root of 431313868 is about 755.5521992770.

It can be divided in two parts, 4313 and 13868, that added together give a palindrome (18181).

The spelling of 431313868 in words is "four hundred thirty-one million, three hundred thirteen thousand, eight hundred sixty-eight".

Divisors: 1 2 4 17 29 34 58 68 116 493 986 1972 218719 437438 874876 3718223 6342851 7436446 12685702 14872892 25371404 107828467 215656934 431313868