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23752028869 = 97244866277
BaseRepresentation
bin10110000111101110…
…110011001011000101
32021022022122002020221
4112013232303023011
5342121004410434
614524520224341
71500411625402
oct260756631305
967268562227
1023752028869
11a089445928
12472a60b0b1
132316b1726a
14121472b2a9
1594035d2b4
hex587bb32c5

23752028869 has 4 divisors (see below), whose sum is σ = 23996895244. Its totient is φ = 23507162496.

The previous prime is 23752028863. The next prime is 23752028879. The reversal of 23752028869 is 96882025732.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12805638244 + 10946390625 = 113162^2 + 104625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23752028869 is a prime.

It is a super-2 number, since 2×237520288692 (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 (23752028863) 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, 122433042 + ... + 122433235.

It is an arithmetic number, because the mean of its divisors is an integer number (5999223811).

Almost surely, 223752028869 is an apocalyptic number.

It is an amenable number.

23752028869 is a deficient number, since it is larger than the sum of its proper divisors (244866375).

23752028869 is an equidigital number, since it uses as much as digits as its factorization.

23752028869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244866374.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 23752028869 in words is "twenty-three billion, seven hundred fifty-two million, twenty-eight thousand, eight hundred sixty-nine".

Divisors: 1 97 244866277 23752028869