Search a number
-
+
18833038 = 2711091213
BaseRepresentation
bin100011111010…
…1111010001110
31022102211001221
41013311322032
514310124123
61511353554
7316035550
oct107657216
938384057
1018833038
11a6a35a4
1263828ba
133b95213
1427034d0
1519c025d
hex11f5e8e

18833038 has 16 divisors (see below), whose sum is σ = 32340960. Its totient is φ = 8057376.

The previous prime is 18833029. The next prime is 18833039. The reversal of 18833038 is 83033881.

It is a junction number, because it is equal to n+sod(n) for n = 18832994 and 18833012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18833039) 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, 14920 + ... + 16132.

It is an arithmetic number, because the mean of its divisors is an integer number (2021310).

Almost surely, 218833038 is an apocalyptic number.

18833038 is a deficient number, since it is larger than the sum of its proper divisors (13507922).

18833038 is a wasteful number, since it uses less digits than its factorization.

18833038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2331.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 18833038 is about 4339.7048286721. The cubic root of 18833038 is about 266.0562471741.

The spelling of 18833038 in words is "eighteen million, eight hundred thirty-three thousand, thirty-eight".

Divisors: 1 2 7 14 1109 1213 2218 2426 7763 8491 15526 16982 1345217 2690434 9416519 18833038