Search a number
-
+
20707422 = 236751511
BaseRepresentation
bin100111011111…
…1100001011110
31102222001020120
41032333201132
520300114142
62015455410
7341003331
oct116774136
942861216
1020707422
111076387a
126b27566
1343a0418
142a70618
151c407ec
hex13bf85e

20707422 has 16 divisors (see below), whose sum is σ = 42033792. Its totient is φ = 6799320.

The previous prime is 20707403. The next prime is 20707433. The reversal of 20707422 is 22470702.

It is a junction number, because it is equal to n+sod(n) for n = 20707392 and 20707401.

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, 25354 + ... + 26157.

It is an arithmetic number, because the mean of its divisors is an integer number (2627112).

Almost surely, 220707422 is an apocalyptic number.

20707422 is an abundant number, since it is smaller than the sum of its proper divisors (21326370).

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

20707422 is a wasteful number, since it uses less digits than its factorization.

20707422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51583.

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 20707422 is about 4550.5408469763. The cubic root of 20707422 is about 274.6051501433.

The spelling of 20707422 in words is "twenty million, seven hundred seven thousand, four hundred twenty-two".

Divisors: 1 2 3 6 67 134 201 402 51511 103022 154533 309066 3451237 6902474 10353711 20707422