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992210131111 = 1950235087657
BaseRepresentation
bin11100111000001000101…
…01010001100010100111
310111212001211102002021111
432130010111101202213
5112224021243143421
62035452014325451
7131453614650013
oct16340425214247
93455054362244
10992210131111
11352880830121
121403691b9887
1372746449174
1436047a3b543
151ac22926ee1
hexe7045518a7

992210131111 has 4 divisors (see below), whose sum is σ = 992215413792. Its totient is φ = 992204848432.

The previous prime is 992210131097. The next prime is 992210131117. The reversal of 992210131111 is 111131012299.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111131012299 = 118194099079.

It is a cyclic number.

It is not a de Polignac number, because 992210131111 - 211 = 992210129063 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 (992210131117) 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, 2348806 + ... + 2738851.

It is an arithmetic number, because the mean of its divisors is an integer number (248053853448).

Almost surely, 2992210131111 is an apocalyptic number.

992210131111 is a deficient number, since it is larger than the sum of its proper divisors (5282681).

992210131111 is a wasteful number, since it uses less digits than its factorization.

992210131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5282680.

The product of its (nonzero) digits is 972, while the sum is 31.

The spelling of 992210131111 in words is "nine hundred ninety-two billion, two hundred ten million, one hundred thirty-one thousand, one hundred eleven".

Divisors: 1 195023 5087657 992210131111