Search a number
-
+
20976301 = 33076343
BaseRepresentation
bin101000000000…
…1001010101101
31110110201002001
41100001022231
520332220201
62025332301
7343203253
oct120011255
943421061
1020976301
1110927895
127037091
134465918
142b005d3
151c95301
hex14012ad

20976301 has 4 divisors (see below), whose sum is σ = 20985952. Its totient is φ = 20966652.

The previous prime is 20976269. The next prime is 20976337. The reversal of 20976301 is 10367902.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20976301 - 25 = 20976269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20976301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20976701) 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, 136 + ... + 6478.

It is an arithmetic number, because the mean of its divisors is an integer number (5246488).

Almost surely, 220976301 is an apocalyptic number.

It is an amenable number.

20976301 is a deficient number, since it is larger than the sum of its proper divisors (9651).

20976301 is an equidigital number, since it uses as much as digits as its factorization.

20976301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9650.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 20976301 is about 4579.9891921270. The cubic root of 20976301 is about 275.7885948521.

The spelling of 20976301 in words is "twenty million, nine hundred seventy-six thousand, three hundred one".

Divisors: 1 3307 6343 20976301