Search a number
-
+
24968987 = 139179633
BaseRepresentation
bin101111100111…
…1111100011011
31201222120000022
41133033330123
522343001422
62251101055
7422142611
oct137177433
951876008
1024968987
111310462a
12844178b
135233064
14345d6b1
1522d3342
hex17cff1b

24968987 has 4 divisors (see below), whose sum is σ = 25148760. Its totient is φ = 24789216.

The previous prime is 24968953. The next prime is 24969011. The reversal of 24968987 is 78986942.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 24968987 - 210 = 24967963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24968687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89678 + ... + 89955.

It is an arithmetic number, because the mean of its divisors is an integer number (6287190).

Almost surely, 224968987 is an apocalyptic number.

24968987 is a deficient number, since it is larger than the sum of its proper divisors (179773).

24968987 is a wasteful number, since it uses less digits than its factorization.

24968987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179772.

The product of its digits is 1741824, while the sum is 53.

The square root of 24968987 is about 4996.8977375968. The cubic root of 24968987 is about 292.2808137069.

The spelling of 24968987 in words is "twenty-four million, nine hundred sixty-eight thousand, nine hundred eighty-seven".

Divisors: 1 139 179633 24968987