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23278241 = 731107273
BaseRepresentation
bin101100011001…
…1001010100001
31121210122202002
41120303022201
521424400431
62150533345
7401601410
oct130631241
947718662
1023278241
111215a318
127967255
134a9060c
14313d477
15209c3cb
hex16332a1

23278241 has 8 divisors (see below), whose sum is σ = 27462144. Its totient is φ = 19308960.

The previous prime is 23278223. The next prime is 23278243. The reversal of 23278241 is 14287232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23278241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23278243) 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, 53420 + ... + 53853.

It is an arithmetic number, because the mean of its divisors is an integer number (3432768).

Almost surely, 223278241 is an apocalyptic number.

It is an amenable number.

23278241 is a deficient number, since it is larger than the sum of its proper divisors (4183903).

23278241 is a wasteful number, since it uses less digits than its factorization.

23278241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107311.

The product of its digits is 5376, while the sum is 29.

The square root of 23278241 is about 4824.7529470430. The cubic root of 23278241 is about 285.5288876153.

The spelling of 23278241 in words is "twenty-three million, two hundred seventy-eight thousand, two hundred forty-one".

Divisors: 1 7 31 217 107273 750911 3325463 23278241