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20507114 = 210253557
BaseRepresentation
bin100111000111…
…0100111101010
31102120212110202
41032032213222
520222211424
62011312202
7336210335
oct116164752
942525422
1020507114
1110637331
126a4b662
1343301b4
142a1b61c
151c012ae
hex138e9ea

20507114 has 4 divisors (see below), whose sum is σ = 30760674. Its totient is φ = 10253556.

The previous prime is 20507111. The next prime is 20507171. The reversal of 20507114 is 41170502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19651489 + 855625 = 4433^2 + 925^2 .

It is not an unprimeable number, because it can be changed into a prime (20507111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5126777 + ... + 5126780.

Almost surely, 220507114 is an apocalyptic number.

20507114 is a deficient number, since it is larger than the sum of its proper divisors (10253560).

20507114 is a wasteful number, since it uses less digits than its factorization.

20507114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10253559.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 20507114 is about 4528.4781108006. The cubic root of 20507114 is about 273.7168385565.

Adding to 20507114 its reverse (41170502), we get a palindrome (61677616).

The spelling of 20507114 in words is "twenty million, five hundred seven thousand, one hundred fourteen".

Divisors: 1 2 10253557 20507114