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20123324300 = 2252201233243
BaseRepresentation
bin10010101111011100…
…011000111110001100
31220221102120210101102
4102233130120332030
5312203032334200
613124452402232
71311450301652
oct225734307614
956842523342
1020123324300
118597101432
123a97316378
131b890c69b1
14d8c828dd2
157cb9cb6d5
hex4af718f8c

20123324300 has 18 divisors (see below), whose sum is σ = 43667613948. Its totient is φ = 8049329680.

The previous prime is 20123324279. The next prime is 20123324369. The reversal of 20123324300 is 342332102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100616522 + ... + 100616721.

Almost surely, 220123324300 is an apocalyptic number.

20123324300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123324300 is an abundant number, since it is smaller than the sum of its proper divisors (23544289648).

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

20123324300 is a wasteful number, since it uses less digits than its factorization.

20123324300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201233257 (or 201233250 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20123324300 its reverse (342332102), we get a palindrome (20465656402).

The spelling of 20123324300 in words is "twenty billion, one hundred twenty-three million, three hundred twenty-four thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 201233243 402466486 804932972 1006166215 2012332430 4024664860 5030831075 10061662150 20123324300