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24980881 is a prime number
BaseRepresentation
bin101111101001…
…0110110010001
31202000011022211
41133102312101
522343342011
62251232121
7422222362
oct137226621
952004284
1024980881
1113112562
128448641
1352385b3
143463b69
1522d6b21
hex17d2d91

24980881 has 2 divisors, whose sum is σ = 24980882. Its totient is φ = 24980880.

The previous prime is 24980869. The next prime is 24980911. The reversal of 24980881 is 18808942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24840256 + 140625 = 4984^2 + 375^2 .

It is a cyclic number.

It is not a de Polignac number, because 24980881 - 217 = 24849809 is a prime.

It is a super-2 number, since 2×249808812 = 1248088831072322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24981881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12490440 + 12490441.

It is an arithmetic number, because the mean of its divisors is an integer number (12490441).

Almost surely, 224980881 is an apocalyptic number.

It is an amenable number.

24980881 is a deficient number, since it is larger than the sum of its proper divisors (1).

24980881 is an equidigital number, since it uses as much as digits as its factorization.

24980881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 24980881 is about 4998.0877343240. The cubic root of 24980881 is about 292.3272157515.

The spelling of 24980881 in words is "twenty-four million, nine hundred eighty thousand, eight hundred eighty-one".