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23445897 = 330725457
BaseRepresentation
bin101100101110…
…0000110001001
31122010011201120
41121130012021
522000232042
62154305453
7403200246
oct131340611
948104646
1023445897
1112264282
127a28289
134b1ba17
1431845cd
1520d1dec
hex165c189

23445897 has 8 divisors (see below), whose sum is σ = 31364256. Its totient is φ = 15579072.

The previous prime is 23445887. The next prime is 23445953. The reversal of 23445897 is 79854432.

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

It is not a de Polignac number, because 23445897 - 24 = 23445881 is a prime.

It is a super-2 number, since 2×234458972 = 1099420172269218, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23445817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11808 + ... + 13649.

It is an arithmetic number, because the mean of its divisors is an integer number (3920532).

Almost surely, 223445897 is an apocalyptic number.

It is an amenable number.

23445897 is a deficient number, since it is larger than the sum of its proper divisors (7918359).

23445897 is a wasteful number, since it uses less digits than its factorization.

23445897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25767.

The product of its digits is 241920, while the sum is 42.

The square root of 23445897 is about 4842.0963435273. The cubic root of 23445897 is about 286.2127331461.

It can be divided in two parts, 23445 and 897, that added together give a palindrome (24342).

The spelling of 23445897 in words is "twenty-three million, four hundred forty-five thousand, eight hundred ninety-seven".

Divisors: 1 3 307 921 25457 76371 7815299 23445897