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13985246977 = 131995405971
BaseRepresentation
bin11010000011001010…
…11110111100000001
31100002122201011020021
431001211132330001
5212120210400402
610231424213441
71003365431542
oct150145367401
940078634207
1013985246977
115a27342059
12286376a281
13141b544a90
149695564c9
1556cbbbd37
hex34195ef01

13985246977 has 8 divisors (see below), whose sum is σ = 15136721600. Its totient is φ = 12844584720.

The previous prime is 13985246963. The next prime is 13985247007. The reversal of 13985246977 is 77964258931.

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 13985246977 - 211 = 13985244929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13985246377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2700399 + ... + 2705572.

It is an arithmetic number, because the mean of its divisors is an integer number (1892090200).

Almost surely, 213985246977 is an apocalyptic number.

It is an amenable number.

13985246977 is a deficient number, since it is larger than the sum of its proper divisors (1151474623).

13985246977 is a wasteful number, since it uses less digits than its factorization.

13985246977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406183.

The product of its digits is 22861440, while the sum is 61.

The spelling of 13985246977 in words is "thirteen billion, nine hundred eighty-five million, two hundred forty-six thousand, nine hundred seventy-seven".

Divisors: 1 13 199 2587 5405971 70277623 1075788229 13985246977