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13813275 = 352783317
BaseRepresentation
bin110100101100…
…011000011011
3221222210020210
4310230120123
512014011100
61212022203
7225260640
oct64543033
927883223
1013813275
117885133
124761963
132b28448
141b97dc7
15132cc50
hexd2c61b

13813275 has 48 divisors (see below), whose sum is σ = 26498304. Its totient is φ = 6218880.

The previous prime is 13813237. The next prime is 13813297. The reversal of 13813275 is 57231831.

13813275 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13813275 - 26 = 13813211 is a prime.

Its product of digits (5040) is a multiple of the sum of its prime factors (420).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43417 + ... + 43733.

It is an arithmetic number, because the mean of its divisors is an integer number (552048).

Almost surely, 213813275 is an apocalyptic number.

13813275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13813275 is a deficient number, since it is larger than the sum of its proper divisors (12685029).

13813275 is a wasteful number, since it uses less digits than its factorization.

13813275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 415 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 13813275 is about 3716.6214496502. The cubic root of 13813275 is about 239.9379179701.

It can be divided in two parts, 1381 and 3275, that added together give a triangular number (4656 = T96).

The spelling of 13813275 in words is "thirteen million, eight hundred thirteen thousand, two hundred seventy-five".

Divisors: 1 3 5 7 15 21 25 35 75 83 105 175 249 317 415 525 581 951 1245 1585 1743 2075 2219 2905 4755 6225 6657 7925 8715 11095 14525 23775 26311 33285 43575 55475 78933 131555 166425 184177 394665 552531 657775 920885 1973325 2762655 4604425 13813275