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20695486 = 278531733
BaseRepresentation
bin100111011110…
…0100110111110
31102221102212111
41032330212332
520244223421
62015324234
7340623460
oct116744676
942842774
1020695486
1110755909
126b2067a
134397b66
142a6a130
151c3bee1
hex13bc9be

20695486 has 16 divisors (see below), whose sum is σ = 35540064. Its totient is φ = 8853984.

The previous prime is 20695483. The next prime is 20695517. The reversal of 20695486 is 68459602.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20695483) 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, 11076 + ... + 12808.

It is an arithmetic number, because the mean of its divisors is an integer number (2221254).

Almost surely, 220695486 is an apocalyptic number.

20695486 is a deficient number, since it is larger than the sum of its proper divisors (14844578).

20695486 is a wasteful number, since it uses less digits than its factorization.

20695486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 20695486 is about 4549.2291654741. The cubic root of 20695486 is about 274.5523781302.

The spelling of 20695486 in words is "twenty million, six hundred ninety-five thousand, four hundred eighty-six".

Divisors: 1 2 7 14 853 1706 1733 3466 5971 11942 12131 24262 1478249 2956498 10347743 20695486