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312353012 = 2278088253
BaseRepresentation
bin10010100111100…
…010000011110100
3210202202011210002
4102213202003310
51114430244022
650554450432
710511646116
oct2247420364
9722664702
10312353012
11150351494
1288733a18
134c93468a
142d6ab3b6
151c64e092
hex129e20f4

312353012 has 6 divisors (see below), whose sum is σ = 546617778. Its totient is φ = 156176504.

The previous prime is 312353011. The next prime is 312353017. The reversal of 312353012 is 210353213.

It can be written as a sum of positive squares in only one way, i.e., 307090576 + 5262436 = 17524^2 + 2294^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312353011) by changing a digit.

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 as a sum of consecutive naturals, namely, 39044123 + ... + 39044130.

It is an arithmetic number, because the mean of its divisors is an integer number (91102963).

Almost surely, 2312353012 is an apocalyptic number.

It is an amenable number.

312353012 is a deficient number, since it is larger than the sum of its proper divisors (234264766).

312353012 is a wasteful number, since it uses less digits than its factorization.

312353012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78088257 (or 78088255 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 312353012 is about 17673.5115922105. The cubic root of 312353012 is about 678.4979909783.

The spelling of 312353012 in words is "three hundred twelve million, three hundred fifty-three thousand, twelve".

Divisors: 1 2 4 78088253 156176506 312353012