Search a number
-
+
20029326 = 236914831
BaseRepresentation
bin100110001100…
…1111110001110
31101200121001220
41030121332032
520111414301
61553144210
7332150352
oct114317616
941617056
1020029326
1110340369
12685b066
1341c3895
142935462
151b59936
hex1319f8e

20029326 has 16 divisors (see below), whose sum is σ = 40124928. Its totient is φ = 6665400.

The previous prime is 20029319. The next prime is 20029337. The reversal of 20029326 is 62392002.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20029296 and 20029305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1731 + ... + 6561.

It is an arithmetic number, because the mean of its divisors is an integer number (2507808).

Almost surely, 220029326 is an apocalyptic number.

20029326 is the 2831-st centered pentagonal number.

20029326 is an abundant number, since it is smaller than the sum of its proper divisors (20095602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20029326 is a wasteful number, since it uses less digits than its factorization.

20029326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20029326 is about 4475.4135004489. The cubic root of 20029326 is about 271.5743685518.

The spelling of 20029326 in words is "twenty million, twenty-nine thousand, three hundred twenty-six".

Divisors: 1 2 3 6 691 1382 2073 4146 4831 9662 14493 28986 3338221 6676442 10014663 20029326