Search a number
-
+
20276101 = 28371647
BaseRepresentation
bin100110101011…
…0001110000101
31102011010120201
41031112032011
520142313401
62002330501
7334225666
oct115261605
942133521
1020276101
111049980a
126959a31
13427bcc1
14299b36d
151ba7b01
hex1356385

20276101 has 4 divisors (see below), whose sum is σ = 20348032. Its totient is φ = 20204172.

The previous prime is 20276089. The next prime is 20276107. The reversal of 20276101 is 10167202.

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.

It is a cyclic number.

It is not a de Polignac number, because 20276101 - 217 = 20145029 is a prime.

It is a super-2 number, since 2×202761012 = 822240543524402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20276107) 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, 35541 + ... + 36106.

It is an arithmetic number, because the mean of its divisors is an integer number (5087008).

Almost surely, 220276101 is an apocalyptic number.

It is an amenable number.

20276101 is a deficient number, since it is larger than the sum of its proper divisors (71931).

20276101 is an equidigital number, since it uses as much as digits as its factorization.

20276101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71930.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 20276101 is about 4502.8991771968. The cubic root of 20276101 is about 272.6851464597.

It can be divided in two parts, 2027 and 6101, that added together give a triangular number (8128 = T127).

The spelling of 20276101 in words is "twenty million, two hundred seventy-six thousand, one hundred one".

Divisors: 1 283 71647 20276101