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192910131213 = 364303377071
BaseRepresentation
bin1011001110101001010…
…1110000000000001101
3200102221020110000220120
42303222111300000031
511130034443144323
6224342141335153
716636331026422
oct2635225600015
9612836400816
10192910131213
11748a3815908
12314792674b9
131526450bc47
1494a064dd49
155040d075e3
hex2cea57000d

192910131213 has 4 divisors (see below), whose sum is σ = 257213508288. Its totient is φ = 128606754140.

The previous prime is 192910131149. The next prime is 192910131283. The reversal of 192910131213 is 312131019291.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 192910131213 - 26 = 192910131149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (192910131283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32151688533 + ... + 32151688538.

It is an arithmetic number, because the mean of its divisors is an integer number (64303377072).

Almost surely, 2192910131213 is an apocalyptic number.

It is an amenable number.

192910131213 is a deficient number, since it is larger than the sum of its proper divisors (64303377075).

192910131213 is an equidigital number, since it uses as much as digits as its factorization.

192910131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64303377074.

The product of its (nonzero) digits is 2916, while the sum is 33.

The spelling of 192910131213 in words is "one hundred ninety-two billion, nine hundred ten million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 64303377071 192910131213