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24023102021 = 79304089899
BaseRepresentation
bin10110010111111000…
…110111001001000101
32022000012201000201022
4112113320313021011
5343144403231041
615011442240525
71510212666212
oct262770671105
968005630638
1024023102021
11a208462126
1247a5356145
13235b027689
14123c730b09
1595905624b
hex597e37245

24023102021 has 4 divisors (see below), whose sum is σ = 24327192000. Its totient is φ = 23719012044.

The previous prime is 24023102003. The next prime is 24023102069. The reversal of 24023102021 is 12020132042.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12020132042 = 26010066021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-24023102021 is a prime.

It is a super-2 number, since 2×240231020212 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24023102071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152044871 + ... + 152045028.

It is an arithmetic number, because the mean of its divisors is an integer number (6081798000).

Almost surely, 224023102021 is an apocalyptic number.

It is an amenable number.

24023102021 is a deficient number, since it is larger than the sum of its proper divisors (304089979).

24023102021 is an equidigital number, since it uses as much as digits as its factorization.

24023102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304089978.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 24023102021 its reverse (12020132042), we get a palindrome (36043234063).

The spelling of 24023102021 in words is "twenty-four billion, twenty-three million, one hundred two thousand, twenty-one".

Divisors: 1 79 304089899 24023102021