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13316251805 = 57273663343
BaseRepresentation
bin11000110011011010…
…11110000010011101
31021101000212200101022
430121231132002131
5204232430024210
610041205253525
7650663162363
oct143155360235
937330780338
1013316251805
11571374a08a
1226b77042a5
131342a6cb4c
1490476d633
1552e0c1155
hex319b5e09d

13316251805 has 8 divisors (see below), whose sum is σ = 16001486592. Its totient is φ = 10638345168.

The previous prime is 13316251799. The next prime is 13316251889. The reversal of 13316251805 is 50815261331.

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 13316251805 - 28 = 13316251549 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, 1828037 + ... + 1835306.

It is an arithmetic number, because the mean of its divisors is an integer number (2000185824).

Almost surely, 213316251805 is an apocalyptic number.

It is an amenable number.

13316251805 is a deficient number, since it is larger than the sum of its proper divisors (2685234787).

13316251805 is an equidigital number, since it uses as much as digits as its factorization.

13316251805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664075.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 13316251805 in words is "thirteen billion, three hundred sixteen million, two hundred fifty-one thousand, eight hundred five".

Divisors: 1 5 727 3635 3663343 18316715 2663250361 13316251805