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312231233013 = 37104987141619
BaseRepresentation
bin1001000101100100110…
…11101000010111110101
31002211220221011001011020
410202302123220113311
520103422143424023
6355234222531353
731362244455660
oct4426233502765
91084827131136
10312231233013
11110464433737
1250619736b59
132359bb649ab
141117d7526d7
1581c63a7de3
hex48b26e85f5

312231233013 has 16 divisors (see below), whose sum is σ = 475788817920. Its totient is φ = 178414888176.

The previous prime is 312231232987. The next prime is 312231233051. The reversal of 312231233013 is 310332132213.

It is not a de Polignac number, because 312231233013 - 233 = 303641298421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231233053) 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, 2133918 + ... + 2275536.

It is an arithmetic number, because the mean of its divisors is an integer number (29736801120).

Almost surely, 2312231233013 is an apocalyptic number.

It is an amenable number.

312231233013 is a deficient number, since it is larger than the sum of its proper divisors (163557584907).

312231233013 is a wasteful number, since it uses less digits than its factorization.

312231233013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246616.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 312231233013 its reverse (310332132213), we get a palindrome (622563365226).

The spelling of 312231233013 in words is "three hundred twelve billion, two hundred thirty-one million, two hundred thirty-three thousand, thirteen".

Divisors: 1 3 7 21 104987 141619 314961 424857 734909 991333 2204727 2973999 14868153953 44604461859 104077077671 312231233013