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312130310 = 2534918941
BaseRepresentation
bin10010100110101…
…011101100000110
3210202022212021212
4102212223230012
51114401132220
650550011422
710510030622
oct2246535406
9722285255
10312130310
1115020a138
1288646b72
134c8871bb
142d650182
151c6080c5
hex129abb06

312130310 has 16 divisors (see below), whose sum is σ = 562058352. Its totient is φ = 124802400.

The previous prime is 312130283. The next prime is 312130327. The reversal of 312130310 is 13031213.

It is a super-2 number, since 2×3121303102 = 194850660841392200, which contains 22 as substring.

It is a congruent number.

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, 30440 + ... + 39380.

It is an arithmetic number, because the mean of its divisors is an integer number (35128647).

Almost surely, 2312130310 is an apocalyptic number.

312130310 is a deficient number, since it is larger than the sum of its proper divisors (249928042).

312130310 is a wasteful number, since it uses less digits than its factorization.

312130310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12439.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 312130310 is about 17667.2100230908. The cubic root of 312130310 is about 678.3367004094.

Adding to 312130310 its reverse (13031213), we get a palindrome (325161523).

The spelling of 312130310 in words is "three hundred twelve million, one hundred thirty thousand, three hundred ten".

Divisors: 1 2 5 10 3491 6982 8941 17455 17882 34910 44705 89410 31213031 62426062 156065155 312130310