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313223132 = 221931132947
BaseRepresentation
bin10010101010110…
…110011111011100
3210211101101100202
4102222312133130
51120141120012
651025243032
710522231655
oct2252663734
9724341322
10313223132
111508961a2
1288a93478
134cb7a741
142d85652c
151c771cc2
hex12ab67dc

313223132 has 24 divisors (see below), whose sum is σ = 595607040. Its totient is φ = 143581680.

The previous prime is 313223111. The next prime is 313223173. The reversal of 313223132 is 231322313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64118 + ... + 68829.

It is an arithmetic number, because the mean of its divisors is an integer number (24816960).

Almost surely, 2313223132 is an apocalyptic number.

It is an amenable number.

313223132 is a deficient number, since it is larger than the sum of its proper divisors (282383908).

313223132 is a wasteful number, since it uses less digits than its factorization.

313223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133001 (or 132999 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 313223132 is about 17698.1109726434. The cubic root of 313223132 is about 679.1274361840.

Adding to 313223132 its reverse (231322313), we get a palindrome (544545445).

It can be divided in two parts, 31322313 and 2, that multiplied together give a palindrome (62644626).

The spelling of 313223132 in words is "three hundred thirteen million, two hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 19 31 38 62 76 124 589 1178 2356 132947 265894 531788 2525993 4121357 5051986 8242714 10103972 16485428 78305783 156611566 313223132