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102212023213 = 112087911899
BaseRepresentation
bin101111100110001001…
…1111011001110101101
3100202211022221202122101
41133030103323032231
53133312234220323
6114542222215101
710245623601526
oct1371423731655
9322738852571
10102212023213
113a391027963
1217986724491
13983bb90811
144d38b4b84d
1529d352ddad
hex17cc4fb3ad

102212023213 has 4 divisors (see below), whose sum is σ = 102213047200. Its totient is φ = 102210999228.

The previous prime is 102212023187. The next prime is 102212023237. The reversal of 102212023213 is 312320212201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 102212023213 - 233 = 93622088621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212023513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343863 + ... + 568036.

It is an arithmetic number, because the mean of its divisors is an integer number (25553261800).

Almost surely, 2102212023213 is an apocalyptic number.

It is an amenable number.

102212023213 is a deficient number, since it is larger than the sum of its proper divisors (1023987).

102212023213 is an equidigital number, since it uses as much as digits as its factorization.

102212023213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023986.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102212023213 its reverse (312320212201), we get a palindrome (414532235414).

The spelling of 102212023213 in words is "one hundred two billion, two hundred twelve million, twenty-three thousand, two hundred thirteen".

Divisors: 1 112087 911899 102212023213