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312232210213 = 71143703913397
BaseRepresentation
bin1001000101100100111…
…11010110111100100101
31002211220222222200121211
410202302133112330211
520103422421211323
6355234255511421
731362255665650
oct4426237267445
91084828880554
10312232210213
11110464a40940
1250619b28571
132359c117711
141117d928897
1581c64ec70d
hex48b27d6f25

312232210213 has 32 divisors (see below), whose sum is σ = 398415790080. Its totient is φ = 237588240960.

The previous prime is 312232210193. The next prime is 312232210229. The reversal of 312232210213 is 312012232213.

It is not a de Polignac number, because 312232210213 - 237 = 174793256741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312232210613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23299431 + ... + 23312827.

It is an arithmetic number, because the mean of its divisors is an integer number (12450493440).

Almost surely, 2312232210213 is an apocalyptic number.

It is an amenable number.

312232210213 is a deficient number, since it is larger than the sum of its proper divisors (86183579867).

312232210213 is a wasteful number, since it uses less digits than its factorization.

312232210213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20497.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 312232210213 its reverse (312012232213), we get a palindrome (624244442426).

The spelling of 312232210213 in words is "three hundred twelve billion, two hundred thirty-two million, two hundred ten thousand, two hundred thirteen".

Divisors: 1 7 11 43 77 301 473 3311 7039 13397 49273 77429 93779 147367 302677 542003 576071 1031569 2118739 3329447 4032497 6336781 23306129 44357467 94301483 660110381 1037316313 4054963769 7261214191 28384746383 44604601459 312232210213