Search a number
-
+
8840013 = 371332381
BaseRepresentation
bin100001101110…
…001101001101
3121122010012220
4201232031031
54230340023
6513245553
7135065430
oct41561515
917563186
108840013
114a986a6
122b638b9
131aa68a0
141261817
15b993e3
hex86e34d

8840013 has 16 divisors (see below), whose sum is σ = 14507136. Its totient is φ = 4662720.

The previous prime is 8839967. The next prime is 8840057. The reversal of 8840013 is 3100488.

8840013 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8840013 - 28 = 8839757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8840093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15918 + ... + 16463.

It is an arithmetic number, because the mean of its divisors is an integer number (906696).

Almost surely, 28840013 is an apocalyptic number.

It is an amenable number.

8840013 is a deficient number, since it is larger than the sum of its proper divisors (5667123).

8840013 is a wasteful number, since it uses less digits than its factorization.

8840013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32404.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 8840013 is about 2973.2159356495. The cubic root of 8840013 is about 206.7684638399.

The spelling of 8840013 in words is "eight million, eight hundred forty thousand, thirteen".

Divisors: 1 3 7 13 21 39 91 273 32381 97143 226667 420953 680001 1262859 2946671 8840013