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23908884949 = 174957283721
BaseRepresentation
bin10110010001000101…
…001010000111010101
32021201020210012100101
4112101011022013111
5342431133304244
614552242214101
71504325111635
oct262105120725
967636705311
1023908884949
11a159a40154
124773054331
132340476a01
14122b4bc6c5
1594dee40d4
hex59114a1d5

23908884949 has 8 divisors (see below), whose sum is σ = 25320486168. Its totient is φ = 22497861120.

The previous prime is 23908884941. The next prime is 23908884953. The reversal of 23908884949 is 94948880932.

It can be written as a sum of positive squares in 4 ways, for example, as 13907484900 + 10001400049 = 117930^2 + 100007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23908884949 - 23 = 23908884941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23908884941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57592 + ... + 226129.

It is an arithmetic number, because the mean of its divisors is an integer number (3165060771).

Almost surely, 223908884949 is an apocalyptic number.

It is an amenable number.

23908884949 is a deficient number, since it is larger than the sum of its proper divisors (1411601219).

23908884949 is a wasteful number, since it uses less digits than its factorization.

23908884949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288695.

The product of its (nonzero) digits is 35831808, while the sum is 64.

The spelling of 23908884949 in words is "twenty-three billion, nine hundred eight million, eight hundred eighty-four thousand, nine hundred forty-nine".

Divisors: 1 17 4957 84269 283721 4823257 1406404997 23908884949