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20300223412 = 227725007979
BaseRepresentation
bin10010111001111111…
…001101001110110100
31221101202110012100101
4102321333031032310
5313033324122122
613154212123444
71316026023550
oct227177151664
957352405311
1020300223412
118677a46347
123b26606584
131bb6953321
14da8116860
157dc2c1027
hex4b9fcd3b4

20300223412 has 12 divisors (see below), whose sum is σ = 40600446880. Its totient is φ = 8700095736.

The previous prime is 20300223301. The next prime is 20300223421. The reversal of 20300223412 is 21432200302.

20300223412 is an admirable number.

It is a super-2 number, since 2×203002234122 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20300223412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362503962 + ... + 362504017.

Almost surely, 220300223412 is an apocalyptic number.

It is an amenable number.

20300223412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20300223412 is a wasteful number, since it uses less digits than its factorization.

20300223412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725007990 (or 725007988 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20300223412 its reverse (21432200302), we get a palindrome (41732423714).

The spelling of 20300223412 in words is "twenty billion, three hundred million, two hundred twenty-three thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 725007979 1450015958 2900031916 5075055853 10150111706 20300223412