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13418511389 = 125910658071
BaseRepresentation
bin11000111111100111…
…00011110000011101
31021122011022000011022
430133303203300131
5204440114331024
610055301133525
7653344315313
oct143763436035
937564260138
1013418511389
115766444238
1227259ba2a5
13135acc4c8a
1491418c0b3
1553807035e
hex31fce3c1d

13418511389 has 4 divisors (see below), whose sum is σ = 13429170720. Its totient is φ = 13407852060.

The previous prime is 13418511377. The next prime is 13418511391. The reversal of 13418511389 is 98311581431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13418511389 - 24 = 13418511373 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 (13418511889) 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, 5327777 + ... + 5330294.

It is an arithmetic number, because the mean of its divisors is an integer number (3357292680).

Almost surely, 213418511389 is an apocalyptic number.

It is an amenable number.

13418511389 is a deficient number, since it is larger than the sum of its proper divisors (10659331).

13418511389 is a wasteful number, since it uses less digits than its factorization.

13418511389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10659330.

The product of its digits is 103680, while the sum is 44.

The spelling of 13418511389 in words is "thirteen billion, four hundred eighteen million, five hundred eleven thousand, three hundred eighty-nine".

Divisors: 1 1259 10658071 13418511389