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20302898 = 2711131837
BaseRepresentation
bin100110101110…
…0110000110010
31102012111100012
41031130300302
520144143043
62003054522
7334400060
oct115346062
942174305
1020302898
1110507960
126971442
13428b265
1429a7030
151bb0a18
hex135cc32

20302898 has 16 divisors (see below), whose sum is σ = 37969344. Its totient is φ = 7910160.

The previous prime is 20302897. The next prime is 20302907. The reversal of 20302898 is 89820302.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20302897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65765 + ... + 66072.

It is an arithmetic number, because the mean of its divisors is an integer number (2373084).

Almost surely, 220302898 is an apocalyptic number.

20302898 is a deficient number, since it is larger than the sum of its proper divisors (17666446).

20302898 is a wasteful number, since it uses less digits than its factorization.

20302898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131857.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 20302898 is about 4505.8737221542. The cubic root of 20302898 is about 272.8052209451.

The spelling of 20302898 in words is "twenty million, three hundred two thousand, eight hundred ninety-eight".

Divisors: 1 2 7 11 14 22 77 154 131837 263674 922859 1450207 1845718 2900414 10151449 20302898