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1022032013 = 1159788129
BaseRepresentation
bin111100111010101…
…111100010001101
32122020010121100112
4330322233202031
54043120011023
6245225405405
734220062112
oct7472574215
92566117315
101022032013
11484a01862
12246339865
13133982492
1499a44909
155ead4478
hex3ceaf88d

1022032013 has 4 divisors (see below), whose sum is σ = 1022131740. Its totient is φ = 1021932288.

The previous prime is 1022032009. The next prime is 1022032031. The reversal of 1022032013 is 3102302201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 582836164 + 439195849 = 24142^2 + 20957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022032013 - 22 = 1022032009 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 (1022032073) 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, 32468 + ... + 55661.

It is an arithmetic number, because the mean of its divisors is an integer number (255532935).

Almost surely, 21022032013 is an apocalyptic number.

It is an amenable number.

1022032013 is a deficient number, since it is larger than the sum of its proper divisors (99727).

1022032013 is an equidigital number, since it uses as much as digits as its factorization.

1022032013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99726.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1022032013 is about 31969.2354146920. The cubic root of 1022032013 is about 1007.2907205488.

Adding to 1022032013 its reverse (3102302201), we get a palindrome (4124334214).

The spelling of 1022032013 in words is "one billion, twenty-two million, thirty-two thousand, thirteen".

Divisors: 1 11597 88129 1022032013