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20652300680 = 2351146937047
BaseRepresentation
bin10011001110111110…
…010001100110001000
31222022021221120120012
4103032332101212020
5314243442110210
613253150251052
71330532442104
oct231676214610
958267846505
1020652300680
11883875a1a0
1240044b6a88
131c41885b7b
14ddcba4904
1580d16a305
hex4cef91988

20652300680 has 32 divisors (see below), whose sum is σ = 50692011840. Its totient is φ = 7509927360.

The previous prime is 20652300679. The next prime is 20652300763. The reversal of 20652300680 is 8600325602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23468084 + ... + 23468963.

It is an arithmetic number, because the mean of its divisors is an integer number (1584125370).

Almost surely, 220652300680 is an apocalyptic number.

20652300680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20652300680 is an abundant number, since it is smaller than the sum of its proper divisors (30039711160).

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

20652300680 is a wasteful number, since it uses less digits than its factorization.

20652300680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46937069 (or 46937065 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 20652300680 in words is "twenty billion, six hundred fifty-two million, three hundred thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 46937047 93874094 187748188 234685235 375496376 469370470 516307517 938740940 1032615034 1877481880 2065230068 2581537585 4130460136 5163075170 10326150340 20652300680