Search a number
-
+
20654124 = 2231739949
BaseRepresentation
bin100111011001…
…0100000101100
31102212100010120
41032302200230
520241412444
62014404540
7340362051
oct116624054
942770116
1020654124
1110727827
126b00750
13438209a
142a59028
151c2eb19
hex13b282c

20654124 has 24 divisors (see below), whose sum is σ = 48476400. Its totient is φ = 6844224.

The previous prime is 20654107. The next prime is 20654143. The reversal of 20654124 is 42145602.

It is a junction number, because it is equal to n+sod(n) for n = 20654094 and 20654103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2899 + ... + 7050.

It is an arithmetic number, because the mean of its divisors is an integer number (2019850).

Almost surely, 220654124 is an apocalyptic number.

It is an amenable number.

20654124 is an abundant number, since it is smaller than the sum of its proper divisors (27822276).

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

20654124 is a wasteful number, since it uses less digits than its factorization.

20654124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10129 (or 10127 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20654124 is about 4544.6808468802. The cubic root of 20654124 is about 274.3693493404.

Adding to 20654124 its reverse (42145602), we get a palindrome (62799726).

The spelling of 20654124 in words is "twenty million, six hundred fifty-four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 173 346 519 692 1038 2076 9949 19898 29847 39796 59694 119388 1721177 3442354 5163531 6884708 10327062 20654124