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1022112313 = 1627628219
BaseRepresentation
bin111100111011000…
…011001000111001
32122020021200111121
4330323003020321
54043130043223
6245231225241
734220545165
oct7473031071
92566250447
101022112313
11484a57122
12246378221
131339acbb1
1499a65ca5
155eaed15d
hex3cec3239

1022112313 has 4 divisors (see below), whose sum is σ = 1022742160. Its totient is φ = 1021482468.

The previous prime is 1022112307. The next prime is 1022112317. The reversal of 1022112313 is 3132112201.

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 1022112313 - 29 = 1022111801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022112317) 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, 312483 + ... + 315736.

It is an arithmetic number, because the mean of its divisors is an integer number (255685540).

Almost surely, 21022112313 is an apocalyptic number.

It is an amenable number.

1022112313 is a deficient number, since it is larger than the sum of its proper divisors (629847).

1022112313 is an equidigital number, since it uses as much as digits as its factorization.

1022112313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629846.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1022112313 is about 31970.4912849334. The cubic root of 1022112313 is about 1007.3171004552.

Adding to 1022112313 its reverse (3132112201), we get a palindrome (4154224514).

The spelling of 1022112313 in words is "one billion, twenty-two million, one hundred twelve thousand, three hundred thirteen".

Divisors: 1 1627 628219 1022112313