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23868041853049 = 48854932
BaseRepresentation
bin1010110110101001101100…
…01001111111100001111001
310010111202120212121210022221
411123110312021333201321
511112023222203244144
6122432454351044041
75012260220212312
oct533246611774171
9103452525553287
1023868041853049
11767241a429809
122815952b10621
1310419926256c4
145c731000d609
152b5ce1135d84
hex15b53627f879

23868041853049 has 3 divisors (see below), whose sum is σ = 23868046738543. Its totient is φ = 23868036967556.

The previous prime is 23868041853017. The next prime is 23868041853083. The reversal of 23868041853049 is 94035814086832.

The square root of 23868041853049 is 4885493.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 22818916917225 + 1049124935824 = 4776915^2 + 1024268^2 .

It is not a de Polignac number, because 23868041853049 - 25 = 23868041853017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23868042853049) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2442747 + ... + 7328239.

Almost surely, 223868041853049 is an apocalyptic number.

23868041853049 is the 4885493-rd square number.

23868041853049 is the 2442747-th centered octagonal number.

It is an amenable number.

23868041853049 is a deficient number, since it is larger than the sum of its proper divisors (4885494).

23868041853049 is an frugal number, since it uses more digits than its factorization.

23868041853049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9770986 (or 4885493 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

The spelling of 23868041853049 in words is "twenty-three trillion, eight hundred sixty-eight billion, forty-one million, eight hundred fifty-three thousand, forty-nine".

Divisors: 1 4885493 23868041853049