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20270514 = 2311307129
BaseRepresentation
bin100110101010…
…0110110110010
31102010211220210
41031110312302
520142124024
62002244550
7334203465
oct115246662
942124823
1020270514
11104955a0
126956756
1342795b4
1429992dc
151ba6129
hex1354db2

20270514 has 16 divisors (see below), whose sum is σ = 44226720. Its totient is φ = 6142560.

The previous prime is 20270513. The next prime is 20270527. The reversal of 20270514 is 41507202.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20270513) 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 7 ways as a sum of consecutive naturals, for example, 153499 + ... + 153630.

It is an arithmetic number, because the mean of its divisors is an integer number (2764170).

Almost surely, 220270514 is an apocalyptic number.

20270514 is an abundant number, since it is smaller than the sum of its proper divisors (23956206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20270514 is a wasteful number, since it uses less digits than its factorization.

20270514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307145.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 20270514 is about 4502.2787563633. The cubic root of 20270514 is about 272.6600983852.

Adding to 20270514 its reverse (41507202), we get a palindrome (61777716).

The spelling of 20270514 in words is "twenty million, two hundred seventy thousand, five hundred fourteen".

Divisors: 1 2 3 6 11 22 33 66 307129 614258 921387 1842774 3378419 6756838 10135257 20270514