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23061019 = 231002653
BaseRepresentation
bin101011111111…
…0001000011011
31121101121202211
41113332020123
521400423034
62142135551
7400005202
oct127761033
947347684
1023061019
11120210a3
1278815b7
134a15797
1430c4239
152057d64
hex15fe21b

23061019 has 4 divisors (see below), whose sum is σ = 24063696. Its totient is φ = 22058344.

The previous prime is 23061007. The next prime is 23061037. The reversal of 23061019 is 91016032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23061019 is a prime.

It is a super-2 number, since 2×230610192 = 1063621194636722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23061719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501304 + ... + 501349.

It is an arithmetic number, because the mean of its divisors is an integer number (6015924).

Almost surely, 223061019 is an apocalyptic number.

23061019 is a deficient number, since it is larger than the sum of its proper divisors (1002677).

23061019 is a wasteful number, since it uses less digits than its factorization.

23061019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002676.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 23061019 is about 4802.1889800382. The cubic root of 23061019 is about 284.6379685456.

The spelling of 23061019 in words is "twenty-three million, sixty-one thousand, nineteen".

Divisors: 1 23 1002653 23061019