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13250233 = 71431433
BaseRepresentation
bin110010100010…
…111010111001
3220221011220101
4302202322321
511343001413
61151555401
7220424263
oct62427271
926834811
1013250233
117530107
12452bb61
13298c099
141a8cb33
15126aedd
hexca2eb9

13250233 has 8 divisors (see below), whose sum is σ = 13499136. Its totient is φ = 13003200.

The previous prime is 13250227. The next prime is 13250249. The reversal of 13250233 is 33205231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13250233 - 29 = 13249721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13250233.

It is not an unprimeable number, because it can be changed into a prime (13250213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30385 + ... + 30817.

It is an arithmetic number, because the mean of its divisors is an integer number (1687392).

Almost surely, 213250233 is an apocalyptic number.

It is an amenable number.

13250233 is a deficient number, since it is larger than the sum of its proper divisors (248903).

13250233 is an equidigital number, since it uses as much as digits as its factorization.

13250233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 13250233 is about 3640.0869495110. The cubic root of 13250233 is about 236.6325615957.

Adding to 13250233 its reverse (33205231), we get a palindrome (46455464).

The spelling of 13250233 in words is "thirteen million, two hundred fifty thousand, two hundred thirty-three".

Divisors: 1 71 431 433 30601 30743 186623 13250233