Search a number
-
+
13250256 = 243276047
BaseRepresentation
bin110010100010…
…111011010000
3220221011221020
4302202323100
511343002011
61151555440
7220424325
oct62427320
926834836
1013250256
117530128
12452bb80
13298c0b6
141a8cb4c
15126b006
hexca2ed0

13250256 has 20 divisors (see below), whose sum is σ = 34229952. Its totient is φ = 4416736.

The previous prime is 13250249. The next prime is 13250269. The reversal of 13250256 is 65205231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137976 + ... + 138071.

Almost surely, 213250256 is an apocalyptic number.

13250256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13250256 is an abundant number, since it is smaller than the sum of its proper divisors (20979696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13250256 is a wasteful number, since it uses less digits than its factorization.

13250256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276058 (or 276052 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 13250256 is about 3640.0901087748. The cubic root of 13250256 is about 236.6326985126.

Adding to 13250256 its reverse (65205231), we get a palindrome (78455487).

The spelling of 13250256 in words is "thirteen million, two hundred fifty thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 276047 552094 828141 1104188 1656282 2208376 3312564 4416752 6625128 13250256