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212110231013 = 2919337897129
BaseRepresentation
bin1100010110001011000…
…0010100010111100101
3202021111022211011100222
43011202300110113211
511433400204343023
6241235254214125
721216201133652
oct3054260242745
9667438734328
10212110231013
1181a56771a8a
1235137354345
131700426a245
14a3a25d4c29
1557b671acc8
hex3162c145e5

212110231013 has 8 divisors (see below), whose sum is σ = 220561296600. Its totient is φ = 203734960128.

The previous prime is 212110231001. The next prime is 212110231063. The reversal of 212110231013 is 310132011212.

It can be written as a sum of positive squares in 4 ways, for example, as 69813793729 + 142296437284 = 264223^2 + 377222^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212110231013 - 28 = 212110230757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212110230982 and 212110231000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212110231063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18942968 + ... + 18954161.

It is an arithmetic number, because the mean of its divisors is an integer number (27570162075).

Almost surely, 2212110231013 is an apocalyptic number.

It is an amenable number.

212110231013 is a deficient number, since it is larger than the sum of its proper divisors (8451065587).

212110231013 is a wasteful number, since it uses less digits than its factorization.

212110231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37897351.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212110231013 its reverse (310132011212), we get a palindrome (522242242225).

The spelling of 212110231013 in words is "two hundred twelve billion, one hundred ten million, two hundred thirty-one thousand, thirteen".

Divisors: 1 29 193 5597 37897129 1099016741 7314145897 212110231013