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13550 = 252271
BaseRepresentation
bin11010011101110
3200120212
43103232
5413200
6142422
754335
oct32356
920525
1013550
11a1a9
127a12
136224
144d1c
154035
hex34ee

13550 has 12 divisors (see below), whose sum is σ = 25296. Its totient is φ = 5400.

The previous prime is 13537. The next prime is 13553. The reversal of 13550 is 5531.

It is an Ulam number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 86 + ... + 185.

It is an arithmetic number, because the mean of its divisors is an integer number (2108).

213550 is an apocalyptic number.

13550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13550 is a deficient number, since it is larger than the sum of its proper divisors (11746).

13550 is a wasteful number, since it uses less digits than its factorization.

13550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 13550 is about 116.4044672682. The cubic root of 13550 is about 23.8403758780.

The spelling of 13550 in words is "thirteen thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 271 542 1355 2710 6775 13550