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24148621 = 724011229
BaseRepresentation
bin101110000011…
…1101010001101
31200102212200101
41130013222031
522140223441
62221331101
7412155100
oct134075215
950385611
1024148621
11126a4242
128106a91
135006833
1432c8737
1521c0231
hex1707a8d

24148621 has 12 divisors (see below), whose sum is σ = 28184220. Its totient is φ = 20630400.

The previous prime is 24148603. The next prime is 24148627. The reversal of 24148621 is 12684142.

It can be written as a sum of positive squares in 2 ways, for example, as 23872996 + 275625 = 4886^2 + 525^2 .

It is not a de Polignac number, because 24148621 - 27 = 24148493 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 24148621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24148627) 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 11 ways as a sum of consecutive naturals, for example, 19035 + ... + 20263.

It is an arithmetic number, because the mean of its divisors is an integer number (2348685).

Almost surely, 224148621 is an apocalyptic number.

It is an amenable number.

24148621 is a deficient number, since it is larger than the sum of its proper divisors (4035599).

24148621 is a wasteful number, since it uses less digits than its factorization.

24148621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1637 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 24148621 is about 4914.1246422939. The cubic root of 24148621 is about 289.0441019369.

The spelling of 24148621 in words is "twenty-four million, one hundred forty-eight thousand, six hundred twenty-one".

Divisors: 1 7 49 401 1229 2807 8603 19649 60221 492829 3449803 24148621