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23480289 = 327596317
BaseRepresentation
bin101100110010…
…0011111100001
31122011220220100
41121210133201
522002332124
62155133013
7403402440
oct131443741
948156810
1023480289
11122880a8
127a44169
134b31581
143192d57
1520dc1c9
hex16647e1

23480289 has 24 divisors (see below), whose sum is σ = 39424320. Its totient is φ = 13187808.

The previous prime is 23480269. The next prime is 23480323. The reversal of 23480289 is 98208432.

It is not a de Polignac number, because 23480289 - 216 = 23414753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23480239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 559 + ... + 6875.

It is an arithmetic number, because the mean of its divisors is an integer number (1642680).

Almost surely, 223480289 is an apocalyptic number.

It is an amenable number.

23480289 is a deficient number, since it is larger than the sum of its proper divisors (15944031).

23480289 is a wasteful number, since it uses less digits than its factorization.

23480289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6389 (or 6386 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 23480289 is about 4845.6463965089. The cubic root of 23480289 is about 286.3526100613.

The spelling of 23480289 in words is "twenty-three million, four hundred eighty thousand, two hundred eighty-nine".

Divisors: 1 3 7 9 21 59 63 177 413 531 1239 3717 6317 18951 44219 56853 132657 372703 397971 1118109 2608921 3354327 7826763 23480289