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13701841 = 28148761
BaseRepresentation
bin110100010001…
…001011010001
3221210010101121
4310101023101
512001424331
61205402241
7224315026
oct64211321
927703347
1013701841
11780943a
124709381
132ab97ca
141b6954d
151309c11
hexd112d1

13701841 has 4 divisors (see below), whose sum is σ = 13750884. Its totient is φ = 13652800.

The previous prime is 13701829. The next prime is 13701893. The reversal of 13701841 is 14810731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14810731 = 131139287.

It can be written as a sum of positive squares in 2 ways, for example, as 11730625 + 1971216 = 3425^2 + 1404^2 .

It is a cyclic number.

It is not a de Polignac number, because 13701841 - 211 = 13699793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13701341) 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, 24100 + ... + 24661.

It is an arithmetic number, because the mean of its divisors is an integer number (3437721).

Almost surely, 213701841 is an apocalyptic number.

It is an amenable number.

13701841 is a deficient number, since it is larger than the sum of its proper divisors (49043).

13701841 is an equidigital number, since it uses as much as digits as its factorization.

13701841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49042.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 13701841 is about 3701.5997892803. The cubic root of 13701841 is about 239.2909687164.

The spelling of 13701841 in words is "thirteen million, seven hundred one thousand, eight hundred forty-one".

Divisors: 1 281 48761 13701841