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20275514 = 272313661
BaseRepresentation
bin100110101011…
…0000100111010
31102011002202222
41031112010322
520142304024
62002324042
7334224200
oct115260472
942132688
1020275514
1110499326
126959622
13427b95c
14299b070
151ba785e
hex135613a

20275514 has 24 divisors (see below), whose sum is σ = 35545428. Its totient is φ = 8648640.

The previous prime is 20275511. The next prime is 20275523. The reversal of 20275514 is 41557202.

It can be written as a sum of positive squares in 2 ways, for example, as 19509889 + 765625 = 4417^2 + 875^2 .

It is a super-2 number, since 2×202755142 = 822192935928392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20275511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30344 + ... + 31004.

Almost surely, 220275514 is an apocalyptic number.

20275514 is a deficient number, since it is larger than the sum of its proper divisors (15269914).

20275514 is a wasteful number, since it uses less digits than its factorization.

20275514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 20275514 is about 4502.8339964960. The cubic root of 20275514 is about 272.6825149918.

The spelling of 20275514 in words is "twenty million, two hundred seventy-five thousand, five hundred fourteen".

Divisors: 1 2 7 14 49 98 313 626 661 1322 2191 4382 4627 9254 15337 30674 32389 64778 206893 413786 1448251 2896502 10137757 20275514