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13106745 = 335175711
BaseRepresentation
bin110001111111…
…111000111001
3220122220002000
4301333320321
511323403440
61144531213
7216256041
oct61777071
926586060
1013106745
117442323
124480b09
13293b992
141a52721
15123d730
hexc7fe39

13106745 has 32 divisors (see below), whose sum is σ = 24675840. Its totient is φ = 6577920.

The previous prime is 13106699. The next prime is 13106747. The reversal of 13106745 is 54760131.

It is not a de Polignac number, because 13106745 - 27 = 13106617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13106747) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561 + ... + 5150.

It is an arithmetic number, because the mean of its divisors is an integer number (771120).

Almost surely, 213106745 is an apocalyptic number.

13106745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13106745 is a deficient number, since it is larger than the sum of its proper divisors (11569095).

13106745 is a wasteful number, since it uses less digits than its factorization.

13106745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742 (or 5736 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 13106745 is about 3620.3238805389. The cubic root of 13106745 is about 235.7752876354.

Adding to 13106745 its reverse (54760131), we get a palindrome (67866876).

The spelling of 13106745 in words is "thirteen million, one hundred six thousand, seven hundred forty-five".

Divisors: 1 3 5 9 15 17 27 45 51 85 135 153 255 459 765 2295 5711 17133 28555 51399 85665 97087 154197 256995 291261 485435 770985 873783 1456305 2621349 4368915 13106745