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10231042013 = 37276514649
BaseRepresentation
bin10011000011101000…
…10100111111011101
3222102000111210011222
421201310110333131
5131423121321023
64411114423125
7511351264553
oct114164247735
928360453158
1010231042013
11438017a325
121b96431aa5
13c70822b1a
146d0b05bd3
153ed2e9cc8
hex261d14fdd

10231042013 has 4 divisors (see below), whose sum is σ = 10507556700. Its totient is φ = 9954527328.

The previous prime is 10231042009. The next prime is 10231042021. The reversal of 10231042013 is 31024013201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31024013201 = 171824941953.

It can be written as a sum of positive squares in 2 ways, for example, as 7554738724 + 2676303289 = 86918^2 + 51733^2 .

It is a cyclic number.

It is not a de Polignac number, because 10231042013 - 22 = 10231042009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10231041982 and 10231042000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231042033) 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 3 ways as a sum of consecutive naturals, for example, 138257288 + ... + 138257361.

It is an arithmetic number, because the mean of its divisors is an integer number (2626889175).

Almost surely, 210231042013 is an apocalyptic number.

It is an amenable number.

10231042013 is a deficient number, since it is larger than the sum of its proper divisors (276514687).

10231042013 is an equidigital number, since it uses as much as digits as its factorization.

10231042013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276514686.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10231042013 its reverse (31024013201), we get a palindrome (41255055214).

The spelling of 10231042013 in words is "ten billion, two hundred thirty-one million, forty-two thousand, thirteen".

Divisors: 1 37 276514649 10231042013