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1315044053 = 2002965657
BaseRepresentation
bin100111001100001…
…1111101011010101
310101122111011022022
41032120133223111
510143122402203
6334253542525
744405455451
oct11630375325
93348434268
101315044053
11615343074
123084a4a45
1317c5a469b
14c6919661
157a6b2a38
hex4e61fad5

1315044053 has 4 divisors (see below), whose sum is σ = 1315129740. Its totient is φ = 1314958368.

The previous prime is 1315044023. The next prime is 1315044193. The reversal of 1315044053 is 3504405131.

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 943595524 + 371448529 = 30718^2 + 19273^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315044053 - 220 = 1313995477 is a prime.

It is a super-2 number, since 2×13150440532 = 3458681722661333618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315044023) 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, 12800 + ... + 52857.

It is an arithmetic number, because the mean of its divisors is an integer number (328782435).

Almost surely, 21315044053 is an apocalyptic number.

It is an amenable number.

1315044053 is a deficient number, since it is larger than the sum of its proper divisors (85687).

1315044053 is an equidigital number, since it uses as much as digits as its factorization.

1315044053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85686.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1315044053 is about 36263.5361348008. The cubic root of 1315044053 is about 1095.5867397517.

Adding to 1315044053 its reverse (3504405131), we get a palindrome (4819449184).

The spelling of 1315044053 in words is "one billion, three hundred fifteen million, forty-four thousand, fifty-three".

Divisors: 1 20029 65657 1315044053