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1293608053 = 1873690661
BaseRepresentation
bin100110100011010…
…1110010001110101
310100011011002122101
41031012232101311
510122130424203
6332210302101
744025326023
oct11506562165
93304132571
101293608053
11604231971
12301287931
1317800a76a
14c3b39713
157887b41d
hex4d1ae475

1293608053 has 4 divisors (see below), whose sum is σ = 1294300588. Its totient is φ = 1292915520.

The previous prime is 1293608039. The next prime is 1293608089. The reversal of 1293608053 is 3508063921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 736742449 + 556865604 = 27143^2 + 23598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1293608053 - 213 = 1293599861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293638053) 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, 343458 + ... + 347203.

It is an arithmetic number, because the mean of its divisors is an integer number (323575147).

Almost surely, 21293608053 is an apocalyptic number.

It is an amenable number.

1293608053 is a deficient number, since it is larger than the sum of its proper divisors (692535).

1293608053 is an equidigital number, since it uses as much as digits as its factorization.

1293608053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692534.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1293608053 is about 35966.7631710167. The cubic root of 1293608053 is about 1089.6011932161.

The spelling of 1293608053 in words is "one billion, two hundred ninety-three million, six hundred eight thousand, fifty-three".

Divisors: 1 1873 690661 1293608053