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23000019 = 371095239
BaseRepresentation
bin101011110111…
…1001111010011
31121021112002120
41113233033103
521342000034
62140545323
7366332310
oct127571723
947245076
1023000019
1111a8a289
127852243
1349c3aa3
1430a9d07
152044c49
hex15ef3d3

23000019 has 8 divisors (see below), whose sum is σ = 35047680. Its totient is φ = 13142856.

The previous prime is 23000011. The next prime is 23000027. The reversal of 23000019 is 91000032.

It is an interprime number because it is at equal distance from previous prime (23000011) and next prime (23000027).

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

It is not a de Polignac number, because 23000019 - 23 = 23000011 is a prime.

It is a super-2 number, since 2×230000192 = 1058001748000722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22999971 and 23000007.

It is not an unprimeable number, because it can be changed into a prime (23000011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547599 + ... + 547640.

It is an arithmetic number, because the mean of its divisors is an integer number (4380960).

Almost surely, 223000019 is an apocalyptic number.

23000019 is a deficient number, since it is larger than the sum of its proper divisors (12047661).

23000019 is a wasteful number, since it uses less digits than its factorization.

23000019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095249.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 23000019 is about 4795.8335041992. The cubic root of 23000019 is about 284.3867762945.

The spelling of 23000019 in words is "twenty-three million, nineteen", and thus it is an aban number and an uban number.

Divisors: 1 3 7 21 1095239 3285717 7666673 23000019