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13655541 = 34551847
BaseRepresentation
bin110100000101…
…110111110101
3221200202212210
4310011313311
511443434131
61204404033
7224033034
oct64056765
927622783
1013655541
117787679
1246a6619
132aa1703
141b5671b
1512eb146
hexd05df5

13655541 has 4 divisors (see below), whose sum is σ = 18207392. Its totient is φ = 9103692.

The previous prime is 13655533. The next prime is 13655561. The reversal of 13655541 is 14555631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14555631 = 34851877.

It is not a de Polignac number, because 13655541 - 23 = 13655533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13655499 and 13655508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13655561) 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, 2275921 + ... + 2275926.

It is an arithmetic number, because the mean of its divisors is an integer number (4551848).

Almost surely, 213655541 is an apocalyptic number.

It is an amenable number.

13655541 is a deficient number, since it is larger than the sum of its proper divisors (4551851).

13655541 is an equidigital number, since it uses as much as digits as its factorization.

13655541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4551850.

The product of its digits is 9000, while the sum is 30.

The square root of 13655541 is about 3695.3404443975. The cubic root of 13655541 is about 239.0211345490.

It can be divided in two parts, 13655 and 541, that added together give a triangular number (14196 = T168).

The spelling of 13655541 in words is "thirteen million, six hundred fifty-five thousand, five hundred forty-one".

Divisors: 1 3 4551847 13655541