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312111430130 = 251714391275851
BaseRepresentation
bin1001000101010110100…
…10100111100111110010
31002211121120201102111102
410202223102213213302
520103201011231010
6355214303044402
731356261245303
oct4425322474762
91084546642442
10312111430130
11110402846a95
12505a55a0702
13235800a9706
141116b8887aa
1581baae0ba5
hex48ab4a79f2

312111430130 has 32 divisors (see below), whose sum is σ = 595261509120. Its totient is φ = 117419027200.

The previous prime is 312111430129. The next prime is 312111430133. The reversal of 312111430130 is 31034111213.

It is not an unprimeable number, because it can be changed into a prime (312111430133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393296 + ... + 882555.

It is an arithmetic number, because the mean of its divisors is an integer number (18601922160).

Almost surely, 2312111430130 is an apocalyptic number.

312111430130 is a deficient number, since it is larger than the sum of its proper divisors (283150078990).

312111430130 is a wasteful number, since it uses less digits than its factorization.

312111430130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277314.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312111430130 its reverse (31034111213), we get a palindrome (343145541343).

The spelling of 312111430130 in words is "three hundred twelve billion, one hundred eleven million, four hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 1439 2878 7195 14390 24463 48926 122315 244630 1275851 2551702 6379255 12758510 21689467 43378934 108447335 216894670 1835949589 3671899178 9179747945 18359495890 31211143013 62422286026 156055715065 312111430130