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20071053 = 322230117
BaseRepresentation
bin100110010010…
…0001010001101
31101202201022100
41030210022031
520114233203
61554105313
7332413122
oct114441215
941681270
1020071053
1110369752
12687b239
134209882
142946749
151b66ea3
hex132428d

20071053 has 6 divisors (see below), whose sum is σ = 28991534. Its totient is φ = 13380696.

The previous prime is 20071039. The next prime is 20071097. The reversal of 20071053 is 35017002.

It can be written as a sum of positive squares in only one way, i.e., 19954089 + 116964 = 4467^2 + 342^2 .

It is not a de Polignac number, because 20071053 - 214 = 20054669 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 (20071553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1115050 + ... + 1115067.

Almost surely, 220071053 is an apocalyptic number.

It is an amenable number.

20071053 is a deficient number, since it is larger than the sum of its proper divisors (8920481).

20071053 is a wasteful number, since it uses less digits than its factorization.

20071053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230123 (or 2230120 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 20071053 is about 4480.0728788715. The cubic root of 20071053 is about 271.7628276057.

Adding to 20071053 its reverse (35017002), we get a palindrome (55088055).

It can be divided in two parts, 200 and 71053, that added together give a triangular number (71253 = T377).

The spelling of 20071053 in words is "twenty million, seventy-one thousand, fifty-three".

Divisors: 1 3 9 2230117 6690351 20071053