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1295707013 = 2158960017
BaseRepresentation
bin100110100111010…
…1110101110000101
310100022002201212122
41031032232232011
510123200111023
6332323255325
744052220316
oct11516565605
93308081778
101295707013
11605435947
12301b1a545
13178593c53
14c412460d
1578b432c8
hex4d3aeb85

1295707013 has 4 divisors (see below), whose sum is σ = 1295788620. Its totient is φ = 1295625408.

The previous prime is 1295707009. The next prime is 1295707019. The reversal of 1295707013 is 3107075921.

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 898980289 + 396726724 = 29983^2 + 19918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1295707013 - 22 = 1295707009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1295707019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8420 + ... + 51597.

It is an arithmetic number, because the mean of its divisors is an integer number (323947155).

Almost surely, 21295707013 is an apocalyptic number.

It is an amenable number.

1295707013 is a deficient number, since it is larger than the sum of its proper divisors (81607).

1295707013 is an equidigital number, since it uses as much as digits as its factorization.

1295707013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81606.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 1295707013 is about 35995.9305061003. The cubic root of 1295707013 is about 1090.1901901382.

The spelling of 1295707013 in words is "one billion, two hundred ninety-five million, seven hundred seven thousand, thirteen".

Divisors: 1 21589 60017 1295707013