Search a number
-
+
24393641 = 131186211
BaseRepresentation
bin101110100001…
…1011110101001
31200220022210012
41131003132221
522221044031
62230501305
7414225326
oct135033651
950808705
1024393641
1112851338
128204835
13509120c
14334db4d
15221cb2b
hex17437a9

24393641 has 4 divisors (see below), whose sum is σ = 24579984. Its totient is φ = 24207300.

The previous prime is 24393637. The next prime is 24393643. The reversal of 24393641 is 14639342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24393641 - 22 = 24393637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 24393598 and 24393607.

It is not an unprimeable number, because it can be changed into a prime (24393643) 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, 92975 + ... + 93236.

It is an arithmetic number, because the mean of its divisors is an integer number (6144996).

Almost surely, 224393641 is an apocalyptic number.

It is an amenable number.

24393641 is a deficient number, since it is larger than the sum of its proper divisors (186343).

24393641 is a wasteful number, since it uses less digits than its factorization.

24393641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186342.

The product of its digits is 15552, while the sum is 32.

The square root of 24393641 is about 4938.9919011879. The cubic root of 24393641 is about 290.0183936015.

The spelling of 24393641 in words is "twenty-four million, three hundred ninety-three thousand, six hundred forty-one".

Divisors: 1 131 186211 24393641