Search a number
-
+
10231213013 = 71461601859
BaseRepresentation
bin10011000011101001…
…11110101111010101
3222102000211110202022
421201310332233111
5131423142304023
64411122222525
7511352606240
oct114164765725
928360743668
1010231213013
11438028684a
121b964b4a45
13c708828c8
146d0b4c257
153ed3307c8
hex261d3ebd5

10231213013 has 4 divisors (see below), whose sum is σ = 11692814880. Its totient is φ = 8769611148.

The previous prime is 10231213009. The next prime is 10231213033. The reversal of 10231213013 is 31031213201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31031213201 = 180771716613.

It is a cyclic number.

It is not a de Polignac number, because 10231213013 - 22 = 10231213009 is a prime.

It is a super-3 number, since 3×102312130133 (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10231212982 and 10231213000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231213033) 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, 730800923 + ... + 730800936.

It is an arithmetic number, because the mean of its divisors is an integer number (2923203720).

Almost surely, 210231213013 is an apocalyptic number.

It is an amenable number.

10231213013 is a deficient number, since it is larger than the sum of its proper divisors (1461601867).

10231213013 is an equidigital number, since it uses as much as digits as its factorization.

10231213013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1461601866.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 10231213013 its reverse (31031213201), we get a palindrome (41262426214).

The spelling of 10231213013 in words is "ten billion, two hundred thirty-one million, two hundred thirteen thousand, thirteen".

Divisors: 1 7 1461601859 10231213013