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13679952973 = 25753229389
BaseRepresentation
bin11001011110110001…
…11000010001001101
31022022101020121120221
430233120320101031
5211004031443343
610141240511341
7663000452551
oct145730702115
938271217527
1013679952973
11588aa82165
12279947b551
1313a021243b
1493aba5861
15550eb45ed
hex32f63844d

13679952973 has 4 divisors (see below), whose sum is σ = 13733182620. Its totient is φ = 13626723328.

The previous prime is 13679952967. The next prime is 13679952997. The reversal of 13679952973 is 37925997631.

13679952973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11007786724 + 2672166249 = 104918^2 + 51693^2 .

It is a cyclic number.

It is not a de Polignac number, because 13679952973 - 25 = 13679952941 is a prime.

It is a super-2 number, since 2×136799529732 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13679952943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26614438 + ... + 26614951.

It is an arithmetic number, because the mean of its divisors is an integer number (3433295655).

Almost surely, 213679952973 is an apocalyptic number.

It is an amenable number.

13679952973 is a deficient number, since it is larger than the sum of its proper divisors (53229647).

13679952973 is an equidigital number, since it uses as much as digits as its factorization.

13679952973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53229646.

The product of its digits is 19289340, while the sum is 61.

The spelling of 13679952973 in words is "thirteen billion, six hundred seventy-nine million, nine hundred fifty-two thousand, nine hundred seventy-three".

Divisors: 1 257 53229389 13679952973