Search a number
-
+
10113681 = 319177433
BaseRepresentation
bin100110100101…
…001010010001
3201000211100210
4212211022101
510042114211
61000434333
7151651644
oct46451221
921024323
1010113681
115788616
1234789a9
132131536
1414b3a5b
15d4b9a6
hex9a5291

10113681 has 8 divisors (see below), whose sum is σ = 14194720. Its totient is φ = 6387552.

The previous prime is 10113667. The next prime is 10113709. The reversal of 10113681 is 18631101.

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

It is not a de Polignac number, because 10113681 - 27 = 10113553 is a prime.

It is a super-2 number, since 2×101136812 = 204573086739522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10113281) 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, 88660 + ... + 88773.

It is an arithmetic number, because the mean of its divisors is an integer number (1774340).

Almost surely, 210113681 is an apocalyptic number.

It is an amenable number.

10113681 is a deficient number, since it is larger than the sum of its proper divisors (4081039).

10113681 is a wasteful number, since it uses less digits than its factorization.

10113681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177455.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 10113681 is about 3180.2014087161. The cubic root of 10113681 is about 216.2567890771.

Adding to 10113681 its reverse (18631101), we get a palindrome (28744782).

The spelling of 10113681 in words is "ten million, one hundred thirteen thousand, six hundred eighty-one".

Divisors: 1 3 19 57 177433 532299 3371227 10113681