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312243002 = 21371139573
BaseRepresentation
bin10010100111000…
…111001100111010
3210202112120212122
4102213013030322
51114413234002
650552241242
710511010311
oct2247071472
9722476778
10312243002
11150286875
12886a0222
134c8c6596
142d67d278
151c62b6a2
hex129c733a

312243002 has 8 divisors (see below), whose sum is σ = 471783636. Its totient is φ = 154981792.

The previous prime is 312242989. The next prime is 312243031. The reversal of 312243002 is 200342213.

It can be written as a sum of positive squares in 2 ways, for example, as 276590161 + 35652841 = 16631^2 + 5971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569513 + ... + 570060.

Almost surely, 2312243002 is an apocalyptic number.

312243002 is a deficient number, since it is larger than the sum of its proper divisors (159540634).

312243002 is a wasteful number, since it uses less digits than its factorization.

312243002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139712.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 312243002 is about 17670.3990334118. The cubic root of 312243002 is about 678.4183264901.

Adding to 312243002 its reverse (200342213), we get a palindrome (512585215).

The spelling of 312243002 in words is "three hundred twelve million, two hundred forty-three thousand, two".

Divisors: 1 2 137 274 1139573 2279146 156121501 312243002