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20238097 = 112198803
BaseRepresentation
bin100110100110…
…0111100010001
31102002012110011
41031030330101
520140104342
62001434521
7334010125
oct115147421
942065404
1020238097
1110473200
12693ba41
134267909
14298b585
151b9b717
hex134cf11

20238097 has 12 divisors (see below), whose sum is σ = 23418640. Its totient is φ = 17427960.

The previous prime is 20238089. The next prime is 20238131. The reversal of 20238097 is 79083202.

It is not a de Polignac number, because 20238097 - 23 = 20238089 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20238017) 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, 2103 + ... + 6700.

Almost surely, 220238097 is an apocalyptic number.

It is an amenable number.

20238097 is a deficient number, since it is larger than the sum of its proper divisors (3180543).

20238097 is a wasteful number, since it uses less digits than its factorization.

20238097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8844 (or 8833 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20238097 is about 4498.6772500369. The cubic root of 20238097 is about 272.5146730589.

The spelling of 20238097 in words is "twenty million, two hundred thirty-eight thousand, ninety-seven".

Divisors: 1 11 19 121 209 2299 8803 96833 167257 1065163 1839827 20238097