Search a number
-
+
11872869 = 36759069
BaseRepresentation
bin101101010010…
…101001100101
3211100012111220
4231102221211
511014412434
61102250553
7202626531
oct55225145
924305456
1011872869
11677a298
123b86a59
1325c9188
141810bc1
151097d49
hexb52a65

11872869 has 8 divisors (see below), whose sum is σ = 16067040. Its totient is φ = 7796976.

The previous prime is 11872841. The next prime is 11872877. The reversal of 11872869 is 96827811.

11872869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11872869 - 217 = 11741797 is a prime.

It is a super-2 number, since 2×118728692 = 281930036582322, 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 11872869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11872829) 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, 29334 + ... + 29735.

It is an arithmetic number, because the mean of its divisors is an integer number (2008380).

Almost surely, 211872869 is an apocalyptic number.

It is an amenable number.

11872869 is a deficient number, since it is larger than the sum of its proper divisors (4194171).

11872869 is an equidigital number, since it uses as much as digits as its factorization.

11872869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59139.

The product of its digits is 48384, while the sum is 42.

The square root of 11872869 is about 3445.7029761719. The cubic root of 11872869 is about 228.1314838715.

The spelling of 11872869 in words is "eleven million, eight hundred seventy-two thousand, eight hundred sixty-nine".

Divisors: 1 3 67 201 59069 177207 3957623 11872869