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20319676 = 2213390763
BaseRepresentation
bin100110110000…
…0110110111100
31102020100100121
41031200312330
520200212201
62003304324
7334500016
oct115406674
942210317
1020319676
1110519523
12697b0a4
134295aa0
1429ad1b6
151bb59a1
hex1360dbc

20319676 has 12 divisors (see below), whose sum is σ = 38294872. Its totient is φ = 9378288.

The previous prime is 20319667. The next prime is 20319701. The reversal of 20319676 is 67691302.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 195330 + ... + 195433.

Almost surely, 220319676 is an apocalyptic number.

20319676 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20319676 is a deficient number, since it is larger than the sum of its proper divisors (17975196).

20319676 is a wasteful number, since it uses less digits than its factorization.

20319676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390780 (or 390778 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 20319676 is about 4507.7351297520. The cubic root of 20319676 is about 272.8803475888.

The spelling of 20319676 in words is "twenty million, three hundred nineteen thousand, six hundred seventy-six".

Divisors: 1 2 4 13 26 52 390763 781526 1563052 5079919 10159838 20319676