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24240661 = 371494397
BaseRepresentation
bin101110001111…
…0001000010101
31200121112221021
41130132020111
522201200121
62223321141
7413020324
oct134361025
950545837
1024240661
1112757405
1281501b1
1350396b3
1433100bb
1521dc641
hex171e215

24240661 has 8 divisors (see below), whose sum is σ = 25068600. Its totient is φ = 23421888.

The previous prime is 24240641. The next prime is 24240677. The reversal of 24240661 is 16604242.

It can be written as a sum of positive squares in 4 ways, for example, as 3538161 + 20702500 = 1881^2 + 4550^2 .

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

It is not a de Polignac number, because 24240661 - 29 = 24240149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24240611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3315 + ... + 7711.

It is an arithmetic number, because the mean of its divisors is an integer number (3133575).

Almost surely, 224240661 is an apocalyptic number.

It is an amenable number.

24240661 is a deficient number, since it is larger than the sum of its proper divisors (827939).

24240661 is a wasteful number, since it uses less digits than its factorization.

24240661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 24240661 is about 4923.4805778027. The cubic root of 24240661 is about 289.4108570619.

The spelling of 24240661 in words is "twenty-four million, two hundred forty thousand, six hundred sixty-one".

Divisors: 1 37 149 4397 5513 162689 655153 24240661