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312433132 = 221122832281
BaseRepresentation
bin10010100111110…
…101100111101100
3210202220020200111
4102213311213230
51114440330012
651000305404
710512431524
oct2247654754
9722806614
10312433132
111503a6700
1288772264
134c961c9b
142d6cc684
151c667ba7
hex129f59ec

312433132 has 36 divisors (see below), whose sum is σ = 603369928. Its totient is φ = 141451200.

The previous prime is 312433103. The next prime is 312433133. The reversal of 312433132 is 231334213.

It is a super-2 number, since 2×3124331322 = 195228923942658848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (312433133) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 135832 + ... + 138112.

Almost surely, 2312433132 is an apocalyptic number.

It is an amenable number.

312433132 is a deficient number, since it is larger than the sum of its proper divisors (290936796).

312433132 is a wasteful number, since it uses less digits than its factorization.

312433132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590 (or 2577 counting only the distinct ones).

The product of its digits is 1296, while the sum is 22.

The square root of 312433132 is about 17675.7781158285. The cubic root of 312433132 is about 678.5559986487. Note that the first 3 decimals are identical.

Adding to 312433132 its reverse (231334213), we get a palindrome (543767345).

The spelling of 312433132 in words is "three hundred twelve million, four hundred thirty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 44 121 242 283 484 566 1132 2281 3113 4562 6226 9124 12452 25091 34243 50182 68486 100364 136972 276001 552002 645523 1104004 1291046 2582092 7100753 14201506 28403012 78108283 156216566 312433132