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312014212131 = 3791316515663
BaseRepresentation
bin1001000101001010111…
…11110000110000100011
31002211100210210020110210
410202211133300300203
520103001114242011
6355200511225203
731354001021016
oct4424537606043
91084323706423
10312014212131
11110362985736
1250578b18203
1323565bcb27b
141115c9bd37d
1581b22da6a6
hex48a57f0c23

312014212131 has 8 divisors (see below), whose sum is σ = 421285012480. Its totient is φ = 205376443272.

The previous prime is 312014212129. The next prime is 312014212151. The reversal of 312014212131 is 131212410213.

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

It is not a de Polignac number, because 312014212131 - 21 = 312014212129 is a prime.

It is a super-2 number, since 2×3120142121312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312014212098 and 312014212107.

It is not an unprimeable number, because it can be changed into a prime (312014212151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658257595 + ... + 658258068.

It is an arithmetic number, because the mean of its divisors is an integer number (52660626560).

Almost surely, 2312014212131 is an apocalyptic number.

312014212131 is a deficient number, since it is larger than the sum of its proper divisors (109270800349).

312014212131 is a wasteful number, since it uses less digits than its factorization.

312014212131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316515745.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 312014212131 its reverse (131212410213), we get a palindrome (443226622344).

The spelling of 312014212131 in words is "three hundred twelve billion, fourteen million, two hundred twelve thousand, one hundred thirty-one".

Divisors: 1 3 79 237 1316515663 3949546989 104004737377 312014212131