Search a number
-
+
20013077 = 74216791
BaseRepresentation
bin100110001011…
…0000000010101
31101122202210002
41030112000111
520110404302
61552541045
7332052110
oct114260025
941582702
1020013077
111032a137
126851785
1341b9376
14292d577
151b54c02
hex1316015

20013077 has 8 divisors (see below), whose sum is σ = 22929792. Its totient is φ = 17110800.

The previous prime is 20013067. The next prime is 20013083. The reversal of 20013077 is 77031002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20013077 - 210 = 20012053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449 + ... + 6342.

It is an arithmetic number, because the mean of its divisors is an integer number (2866224).

Almost surely, 220013077 is an apocalyptic number.

It is an amenable number.

20013077 is a deficient number, since it is larger than the sum of its proper divisors (2916715).

20013077 is an equidigital number, since it uses as much as digits as its factorization.

20013077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7219.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 20013077 is about 4473.5977691339. The cubic root of 20013077 is about 271.5009095020.

Adding to 20013077 its reverse (77031002), we get a palindrome (97044079).

The spelling of 20013077 in words is "twenty million, thirteen thousand, seventy-seven".

Divisors: 1 7 421 2947 6791 47537 2859011 20013077