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13639141 = 831011627
BaseRepresentation
bin110100000001…
…110111100101
3221122221101101
4310001313211
511442423031
61204200101
7223634155
oct64016745
927587341
1013639141
11777631a
124699031
132a970c9
141b50765
1512e6361
hexd01de5

13639141 has 8 divisors (see below), whose sum is σ = 13948704. Its totient is φ = 13333200.

The previous prime is 13639139. The next prime is 13639181. The reversal of 13639141 is 14193631.

13639141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13639141 - 21 = 13639139 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 (13639111) 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, 7570 + ... + 9196.

It is an arithmetic number, because the mean of its divisors is an integer number (1743588).

Almost surely, 213639141 is an apocalyptic number.

It is an amenable number.

13639141 is a deficient number, since it is larger than the sum of its proper divisors (309563).

13639141 is a wasteful number, since it uses less digits than its factorization.

13639141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its digits is 1944, while the sum is 28.

The square root of 13639141 is about 3693.1207670478. The cubic root of 13639141 is about 238.9254098682.

The spelling of 13639141 in words is "thirteen million, six hundred thirty-nine thousand, one hundred forty-one".

Divisors: 1 83 101 1627 8383 135041 164327 13639141