Search a number
-
+
10623993 = 319118541
BaseRepresentation
bin101000100001…
…101111111001
3201222202101020
4220201233321
510204431433
61015413053
7156205512
oct50415771
921882336
1010623993
115aa6a66
123684189
13227c8b3
1415a7a09
15deccb3
hexa21bf9

10623993 has 8 divisors (see below), whose sum is σ = 14240256. Its totient is φ = 7045200.

The previous prime is 10623973. The next prime is 10624001. The reversal of 10623993 is 39932601.

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

It is not a de Polignac number, because 10623993 - 28 = 10623737 is a prime.

It is a super-2 number, since 2×106239932 = 225738454528098, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10623913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8698 + ... + 9843.

It is an arithmetic number, because the mean of its divisors is an integer number (1780032).

Almost surely, 210623993 is an apocalyptic number.

It is an amenable number.

10623993 is a deficient number, since it is larger than the sum of its proper divisors (3616263).

10623993 is a wasteful number, since it uses less digits than its factorization.

10623993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18735.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 10623993 is about 3259.4467321924. The cubic root of 10623993 is about 219.8345381218.

The spelling of 10623993 in words is "ten million, six hundred twenty-three thousand, nine hundred ninety-three".

Divisors: 1 3 191 573 18541 55623 3541331 10623993