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212351315132 = 221128317053591
BaseRepresentation
bin1100010111000100011…
…1111110110010111100
3202022010010110111121102
43011301013332302330
511434343414041012
6241315225352232
721225156253055
oct3056107766274
9668103414542
10212351315132
118206a866060
12351a4038678
13170421aa678
14a3c662d72c
1557cc98d2c2
hex31711fecbc

212351315132 has 24 divisors (see below), whose sum is σ = 406830490752. Its totient is φ = 96182247600.

The previous prime is 212351315081. The next prime is 212351315153. The reversal of 212351315132 is 231513153212.

It is a junction number, because it is equal to n+sod(n) for n = 212351315095 and 212351315104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8514344 + ... + 8539247.

It is an arithmetic number, because the mean of its divisors is an integer number (16951270448).

Almost surely, 2212351315132 is an apocalyptic number.

212351315132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212351315132 is a deficient number, since it is larger than the sum of its proper divisors (194479175620).

212351315132 is a wasteful number, since it uses less digits than its factorization.

212351315132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17053889 (or 17053887 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

Adding to 212351315132 its reverse (231513153212), we get a palindrome (443864468344).

The spelling of 212351315132 in words is "two hundred twelve billion, three hundred fifty-one million, three hundred fifteen thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 44 283 566 1132 3113 6226 12452 17053591 34107182 68214364 187589501 375179002 750358004 4826166253 9652332506 19304665012 53087828783 106175657566 212351315132