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312053312391 = 3537924843031
BaseRepresentation
bin1001000101001111101…
…00111010101110000111
31002211110112100201221120
410202213310322232013
520103041121444031
6355204425245023
731354654250652
oct4424764725607
91084415321846
10312053312391
11110382a612a7
125058a033773
132357103b412
1411163c7a899
1581b5960a96
hex48a7d3ab87

312053312391 has 16 divisors (see below), whose sum is σ = 429287592960. Its totient is φ = 201526659360.

The previous prime is 312053312381. The next prime is 312053312399. The reversal of 312053312391 is 193213350213.

It is not a de Polignac number, because 312053312391 - 223 = 312044923783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312053312399) 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, 12408955 + ... + 12434076.

It is an arithmetic number, because the mean of its divisors is an integer number (26830474560).

Almost surely, 2312053312391 is an apocalyptic number.

312053312391 is a deficient number, since it is larger than the sum of its proper divisors (117234280569).

312053312391 is a wasteful number, since it uses less digits than its factorization.

312053312391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24843166.

The product of its (nonzero) digits is 14580, while the sum is 33.

The spelling of 312053312391 in words is "three hundred twelve billion, fifty-three million, three hundred twelve thousand, three hundred ninety-one".

Divisors: 1 3 53 79 159 237 4187 12561 24843031 74529093 1316680643 1962599449 3950041929 5887798347 104017770797 312053312391