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13706255 = 52741251
BaseRepresentation
bin110100010010…
…010000001111
3221210100110002
4310102100033
512002100010
61205434515
7224333633
oct64222017
927710402
1013706255
117811792
12470ba3b
132abb814
141b6adc3
15130b1a5
hexd1240f

13706255 has 4 divisors (see below), whose sum is σ = 16447512. Its totient is φ = 10965000.

The previous prime is 13706227. The next prime is 13706269. The reversal of 13706255 is 55260731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55260731 = 137403363.

It is not a de Polignac number, because 13706255 - 210 = 13705231 is a prime.

It is a super-3 number, since 3×137062553 (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1370621 + ... + 1370630.

It is an arithmetic number, because the mean of its divisors is an integer number (4111878).

Almost surely, 213706255 is an apocalyptic number.

13706255 is a deficient number, since it is larger than the sum of its proper divisors (2741257).

13706255 is an equidigital number, since it uses as much as digits as its factorization.

13706255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741256.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 13706255 is about 3702.1959699616. The cubic root of 13706255 is about 239.3166615396.

Adding to 13706255 its reverse (55260731), we get a palindrome (68966986).

The spelling of 13706255 in words is "thirteen million, seven hundred six thousand, two hundred fifty-five".

Divisors: 1 5 2741251 13706255