Search a number
-
+
20675796 = 2231722983
BaseRepresentation
bin100111011011…
…1110011010100
31102220102212020
41032313303110
520243111141
62015053140
7340512201
oct116676324
942812766
1020675796
1110742039
126b111b0
13438bbcb
142a62ca8
151c36266
hex13b7cd4

20675796 has 12 divisors (see below), whose sum is σ = 48243552. Its totient is φ = 6891928.

The previous prime is 20675789. The next prime is 20675797. The reversal of 20675796 is 69757602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 861480 + ... + 861503.

It is an arithmetic number, because the mean of its divisors is an integer number (4020296).

Almost surely, 220675796 is an apocalyptic number.

It is an amenable number.

20675796 is an abundant number, since it is smaller than the sum of its proper divisors (27567756).

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

20675796 is a wasteful number, since it uses less digits than its factorization.

20675796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722990 (or 1722988 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 20675796 is about 4547.0645475955. The cubic root of 20675796 is about 274.4652793999.

The spelling of 20675796 in words is "twenty million, six hundred seventy-five thousand, seven hundred ninety-six".

Divisors: 1 2 3 4 6 12 1722983 3445966 5168949 6891932 10337898 20675796