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13684770743 = 71954967249
BaseRepresentation
bin11001011111010110…
…10000011110110111
31022022201022101022212
430233223100132313
5211011300130433
610141532044035
7663056426540
oct145753203667
938281271285
1013684770743
115892772896
12279b00361b
1313a120b2a7
1493b69b4c7
15551616d48
hex32fad07b7

13684770743 has 4 divisors (see below), whose sum is σ = 15639738000. Its totient is φ = 11729803488.

The previous prime is 13684770731. The next prime is 13684770761. The reversal of 13684770743 is 34707748631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13684770743 - 28 = 13684770487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13684770691 and 13684770700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13684770643) 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, 977483618 + ... + 977483631.

It is an arithmetic number, because the mean of its divisors is an integer number (3909934500).

Almost surely, 213684770743 is an apocalyptic number.

13684770743 is a deficient number, since it is larger than the sum of its proper divisors (1954967257).

13684770743 is an equidigital number, since it uses as much as digits as its factorization.

13684770743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954967256.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 13684770743 in words is "thirteen billion, six hundred eighty-four million, seven hundred seventy thousand, seven hundred forty-three".

Divisors: 1 7 1954967249 13684770743