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992312243 = 13139549149
BaseRepresentation
bin111011001001010…
…111101110110011
32120011012200111022
4323021113232303
54013012442433
6242244410055
733406341416
oct7311275663
92504180438
10992312243
1146a15296a
122383a692b
1312a777c10
1495b09b7d
155c1b3698
hex3b257bb3

992312243 has 8 divisors (see below), whose sum is σ = 1076334000. Its totient is φ = 909389088.

The previous prime is 992312131. The next prime is 992312291. The reversal of 992312243 is 342213299.

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 992312243 - 220 = 991263667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (992302243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272768 + ... + 276381.

It is an arithmetic number, because the mean of its divisors is an integer number (134541750).

Almost surely, 2992312243 is an apocalyptic number.

992312243 is a deficient number, since it is larger than the sum of its proper divisors (84021757).

992312243 is a wasteful number, since it uses less digits than its factorization.

992312243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549301.

The product of its digits is 23328, while the sum is 35.

The square root of 992312243 is about 31500.9879686336. The cubic root of 992312243 is about 997.4308192966.

The spelling of 992312243 in words is "nine hundred ninety-two million, three hundred twelve thousand, two hundred forty-three".

Divisors: 1 13 139 1807 549149 7138937 76331711 992312243