Search a number
-
+
20260707 = 3191911861
BaseRepresentation
bin100110101001…
…0011101100011
31102010100110120
41031102131203
520141320312
62002131323
7334133055
oct115223543
942110416
1020260707
1110489195
126950b43
134274cac
1429958d5
151ba328c
hex1352763

20260707 has 16 divisors (see below), whose sum is σ = 28600320. Its totient is φ = 12722400.

The previous prime is 20260703. The next prime is 20260729. The reversal of 20260707 is 70706202.

It is not a de Polignac number, because 20260707 - 22 = 20260703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20260703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9957 + ... + 11817.

It is an arithmetic number, because the mean of its divisors is an integer number (1787520).

Almost surely, 220260707 is an apocalyptic number.

20260707 is a deficient number, since it is larger than the sum of its proper divisors (8339613).

20260707 is a wasteful number, since it uses less digits than its factorization.

20260707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 20260707 is about 4501.1895094519. The cubic root of 20260707 is about 272.6161197449.

Adding to 20260707 its reverse (70706202), we get a palindrome (90966909).

The spelling of 20260707 in words is "twenty million, two hundred sixty thousand, seven hundred seven".

Divisors: 1 3 19 57 191 573 1861 3629 5583 10887 35359 106077 355451 1066353 6753569 20260707