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13132538 = 2107109563
BaseRepresentation
bin110010000110…
…001011111010
3220201012110022
4302012023322
511330220123
61145250442
7216424166
oct62061372
926635408
1013132538
11745a741
124493a22
13294a643
141a5bca6
1512461c8
hexc862fa

13132538 has 16 divisors (see below), whose sum is σ = 20100960. Its totient is φ = 6433776.

The previous prime is 13132519. The next prime is 13132547. The reversal of 13132538 is 83523131.

13132538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23045 + ... + 23607.

It is an arithmetic number, because the mean of its divisors is an integer number (1256310).

Almost surely, 213132538 is an apocalyptic number.

13132538 is a deficient number, since it is larger than the sum of its proper divisors (6968422).

13132538 is a wasteful number, since it uses less digits than its factorization.

13132538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781.

The product of its digits is 2160, while the sum is 26.

The square root of 13132538 is about 3623.8843800541. The cubic root of 13132538 is about 235.9298484398.

Adding to 13132538 its reverse (83523131), we get a palindrome (96655669).

The spelling of 13132538 in words is "thirteen million, one hundred thirty-two thousand, five hundred thirty-eight".

Divisors: 1 2 107 109 214 218 563 1126 11663 23326 60241 61367 120482 122734 6566269 13132538