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20277053 = 23881611
BaseRepresentation
bin100110101011…
…0011100111101
31102011011212222
41031112130331
520142331203
62002335125
7334231526
oct115263475
942134788
1020277053
111049a4a5
12695a4a5
13427c574
14299b84d
151ba8038
hex135673d

20277053 has 4 divisors (see below), whose sum is σ = 21158688. Its totient is φ = 19395420.

The previous prime is 20277041. The next prime is 20277077. The reversal of 20277053 is 35077202.

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 20277053 - 26 = 20276989 is a prime.

It is a super-2 number, since 2×202770532 = 822317756729618, 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 (20277253) 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, 440783 + ... + 440828.

It is an arithmetic number, because the mean of its divisors is an integer number (5289672).

Almost surely, 220277053 is an apocalyptic number.

20277053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20277053 is a deficient number, since it is larger than the sum of its proper divisors (881635).

20277053 is an equidigital number, since it uses as much as digits as its factorization.

20277053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881634.

The product of its (nonzero) digits is 2940, while the sum is 26.

The square root of 20277053 is about 4503.0048856292. The cubic root of 20277053 is about 272.6894140816.

The spelling of 20277053 in words is "twenty million, two hundred seventy-seven thousand, fifty-three".

Divisors: 1 23 881611 20277053