Search a number
-
+
23390193 = 338320357
BaseRepresentation
bin101100100111…
…0011111110001
31122000100022110
41121032133301
521441441233
62153155533
7402545661
oct131163761
948010273
1023390193
1112226442
1279bbba9
134acc568
14316c1a1
1520c0663
hex164e7f1

23390193 has 8 divisors (see below), whose sum is σ = 31269888. Its totient is φ = 15551984.

The previous prime is 23390183. The next prime is 23390221. The reversal of 23390193 is 39109332.

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

It is a cyclic number.

It is not a de Polignac number, because 23390193 - 216 = 23324657 is a prime.

It is a super-2 number, since 2×233901932 = 1094202257154498, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23390193.

It is not an unprimeable number, because it can be changed into a prime (23390173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9030 + ... + 11327.

It is an arithmetic number, because the mean of its divisors is an integer number (3908736).

Almost surely, 223390193 is an apocalyptic number.

It is an amenable number.

23390193 is a deficient number, since it is larger than the sum of its proper divisors (7879695).

23390193 is a wasteful number, since it uses less digits than its factorization.

23390193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20743.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 23390193 is about 4836.3408688801. The cubic root of 23390193 is about 285.9858869591.

The spelling of 23390193 in words is "twenty-three million, three hundred ninety thousand, one hundred ninety-three".

Divisors: 1 3 383 1149 20357 61071 7796731 23390193