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20274053 = 109118583
BaseRepresentation
bin100110101010…
…1101110000101
31102011000202212
41031111232011
520142232203
62002313205
7334220012
oct115255605
942130685
1020274053
1110498218
126958805
13427b0a7
14299a709
151ba71d8
hex1355b85

20274053 has 4 divisors (see below), whose sum is σ = 20293728. Its totient is φ = 20254380.

The previous prime is 20274041. The next prime is 20274073. The reversal of 20274053 is 35047202.

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 20274053 - 26 = 20273989 is a prime.

It is a super-2 number, since 2×202740532 = 822074450093618, 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 (20274073) 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 3 ways as a sum of consecutive naturals, for example, 8201 + ... + 10382.

It is an arithmetic number, because the mean of its divisors is an integer number (5073432).

Almost surely, 220274053 is an apocalyptic number.

It is an amenable number.

20274053 is a deficient number, since it is larger than the sum of its proper divisors (19675).

20274053 is a wasteful number, since it uses less digits than its factorization.

20274053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19674.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20274053 is about 4502.6717624095. The cubic root of 20274053 is about 272.6759652405.

It can be divided in two parts, 2027 and 4053, that multiplied together give a triangular number (8215431 = T4053).

The spelling of 20274053 in words is "twenty million, two hundred seventy-four thousand, fifty-three".

Divisors: 1 1091 18583 20274053