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212310230132 = 227111392957077
BaseRepresentation
bin1100010110111010101…
…1010000010001110100
3202022000021011011120202
43011232223100101310
511434302404331012
6241311201020032
721224150115530
oct3055653202164
9668007134522
10212310230132
1182049654310
1235192324618
1317036824010
14a3c0db6bc0
1557c9074cc2
hex316ead0474

212310230132 has 96 divisors (see below), whose sum is σ = 499400536320. Its totient is φ = 76271800320.

The previous prime is 212310230129. The next prime is 212310230137. The reversal of 212310230132 is 231032013212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212310230137) 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, 3691178 + ... + 3748254.

It is an arithmetic number, because the mean of its divisors is an integer number (5202088920).

Almost surely, 2212310230132 is an apocalyptic number.

212310230132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212310230132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249700268160).

212310230132 is an abundant number, since it is smaller than the sum of its proper divisors (287090306188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212310230132 is a wasteful number, since it uses less digits than its factorization.

212310230132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58041 (or 58039 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212310230132 its reverse (231032013212), we get a palindrome (443342243344).

The spelling of 212310230132 in words is "two hundred twelve billion, three hundred ten million, two hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 7 11 13 14 22 26 28 44 52 77 91 143 154 182 286 308 364 572 929 1001 1858 2002 3716 4004 6503 10219 12077 13006 20438 24154 26012 40876 48308 57077 71533 84539 114154 132847 143066 169078 228308 265694 286132 338156 399539 531388 627847 742001 799078 929929 1255694 1484002 1598156 1859858 2511388 2968004 3719716 4394929 5194007 8162011 8789858 10388014 16324022 17579716 20776028 32648044 53024533 57134077 106049066 114268154 212098132 228536308 371171731 583269863 689318929 742343462 1166539726 1378637858 1484686924 2333079452 2757275716 4082889041 4825232503 7582508219 8165778082 9650465006 15165016438 16331556164 19300930012 30330032876 53077557533 106155115066 212310230132