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311210012113 = 72111353838003
BaseRepresentation
bin1001000011101011000…
…11111110110111010001
31002202021202112122102221
410201311203332313101
520044324230341423
6354545022341041
731325034312400
oct4416543766721
91082252478387
10311210012113
1110aa8aa36320
125039372a781
1323468407780
14110c3c7d637
1581668d3e5d
hex48758fedd1

311210012113 has 48 divisors (see below), whose sum is σ = 433335220416. Its totient is φ = 219623564160.

The previous prime is 311210012089. The next prime is 311210012129.

It is a happy number.

311210012113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 311210012113 - 29 = 311210011601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311210012413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47631 + ... + 790372.

It is an arithmetic number, because the mean of its divisors is an integer number (9027817092).

Almost surely, 2311210012113 is an apocalyptic number.

It is an amenable number.

311210012113 is a deficient number, since it is larger than the sum of its proper divisors (122125208303).

311210012113 is a wasteful number, since it uses less digits than its factorization.

311210012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838094 (or 838087 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

It can be divided in two parts, 3112100 and 12113, that added together give a palindrome (3124213).

The spelling of 311210012113 in words is "three hundred eleven billion, two hundred ten million, twelve thousand, one hundred thirteen".

Divisors: 1 7 11 13 49 53 77 91 143 371 539 583 637 689 1001 2597 4081 4823 7007 7579 28567 33761 53053 371371 838003 5866021 9218033 10894039 41062147 44414159 64526231 76258273 119834429 310899113 451683617 488555749 533807911 577384067 838841003 2176293791 3419890243 4041688469 5871887021 6351224737 23939231701 28291819283 44458573159 311210012113