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5313961805 = 51815871781
BaseRepresentation
bin1001111001011110…
…01001111101001101
3111201100011020012012
410330233021331031
541340333234210
62235144351005
7245453634005
oct47457117515
914640136165
105313961805
112287658179
121043775465
13668c075c9
14385a6b005
152117c2305
hex13cbc9f4d

5313961805 has 8 divisors (see below), whose sum is σ = 6411985944. Its totient is φ = 4227681600.

The previous prime is 5313961789. The next prime is 5313961831. The reversal of 5313961805 is 5081693135.

It can be written as a sum of positive squares in 4 ways, for example, as 86527204 + 5227434601 = 9302^2 + 72301^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5313961805 - 24 = 5313961789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2934986 + ... + 2936795.

It is an arithmetic number, because the mean of its divisors is an integer number (801498243).

Almost surely, 25313961805 is an apocalyptic number.

It is an amenable number.

5313961805 is a deficient number, since it is larger than the sum of its proper divisors (1098024139).

5313961805 is a wasteful number, since it uses less digits than its factorization.

5313961805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871967.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 5313961805 is about 72896.9258954038. The cubic root of 5313961805 is about 1745.0430396360.

The spelling of 5313961805 in words is "five billion, three hundred thirteen million, nine hundred sixty-one thousand, eight hundred five".

Divisors: 1 5 181 905 5871781 29358905 1062792361 5313961805