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13679209789 = 72697264583
BaseRepresentation
bin11001011110101100…
…00010110100111101
31022022022211212010121
430233112002310331
5211003334203124
610141212534541
7662661236050
oct145726026475
938268755117
1013679209789
11588a614863
122799181451
1313a001209b
1493aa50a97
15550db92e4
hex32f582d3d

13679209789 has 8 divisors (see below), whose sum is σ = 15691501440. Its totient is φ = 11681447856.

The previous prime is 13679209769. The next prime is 13679209849. The reversal of 13679209789 is 98790297631.

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 13679209789 - 213 = 13679201597 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 (13679209769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3630409 + ... + 3634174.

It is an arithmetic number, because the mean of its divisors is an integer number (1961437680).

Almost surely, 213679209789 is an apocalyptic number.

It is an amenable number.

13679209789 is a deficient number, since it is larger than the sum of its proper divisors (2012291651).

13679209789 is an equidigital number, since it uses as much as digits as its factorization.

13679209789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7264859.

The product of its (nonzero) digits is 10287648, while the sum is 61.

The spelling of 13679209789 in words is "thirteen billion, six hundred seventy-nine million, two hundred nine thousand, seven hundred eighty-nine".

Divisors: 1 7 269 1883 7264583 50852081 1954172827 13679209789