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23500244153 = 117127200639
BaseRepresentation
bin10101111000101110…
…010100010010111001
32020122202212002120002
4111320232110102321
5341112030303103
614443523442345
71461233531231
oct257056242271
966582762502
1023500244153
119a6a303291
12467a2263b5
1322a68cb419
1411cd108cc1
159281c5488
hex578b944b9

23500244153 has 4 divisors (see below), whose sum is σ = 23500561920. Its totient is φ = 23499926388.

The previous prime is 23500244147. The next prime is 23500244213. The reversal of 23500244153 is 35144200532.

It is a happy number.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23500244153 - 24 = 23500244137 is a prime.

It is a super-2 number, since 2×235002441532 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23500244113) 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, 16808 + ... + 217446.

It is an arithmetic number, because the mean of its divisors is an integer number (5875140480).

Almost surely, 223500244153 is an apocalyptic number.

It is an amenable number.

23500244153 is a deficient number, since it is larger than the sum of its proper divisors (317767).

23500244153 is a wasteful number, since it uses less digits than its factorization.

23500244153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317766.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 23500244153 its reverse (35144200532), we get a palindrome (58644444685).

The spelling of 23500244153 in words is "twenty-three billion, five hundred million, two hundred forty-four thousand, one hundred fifty-three".

Divisors: 1 117127 200639 23500244153