Search a number
-
+
1313130023 = 31221319141
BaseRepresentation
bin100111001000100…
…1100011000100111
310101111212220202022
41032101030120213
510142130130043
6334144533355
744353264262
oct11621143047
93344786668
101313130023
11614256027
1230792125b
1317c08441a
14c657bcd9
157a435868
hex4e44c627

1313130023 has 8 divisors (see below), whose sum is σ = 1356172416. Its totient is φ = 1270130400.

The previous prime is 1313129989. The next prime is 1313130029. The reversal of 1313130023 is 3200313131.

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 1313130023 - 26 = 1313129959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313129983 and 1313130010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313130029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59033 + ... + 78173.

It is an arithmetic number, because the mean of its divisors is an integer number (169521552).

Almost surely, 21313130023 is an apocalyptic number.

1313130023 is a deficient number, since it is larger than the sum of its proper divisors (43042393).

1313130023 is a wasteful number, since it uses less digits than its factorization.

1313130023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21385.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1313130023 is about 36237.1359657465. The cubic root of 1313130023 is about 1095.0549441096.

Adding to 1313130023 its reverse (3200313131), we get a palindrome (4513443154).

The spelling of 1313130023 in words is "one billion, three hundred thirteen million, one hundred thirty thousand, twenty-three".

Divisors: 1 31 2213 19141 68603 593371 42359033 1313130023