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20120010200 = 2352255739343
BaseRepresentation
bin10010101111001111…
…101111110111011000
31220221012100102021222
4102233033233313120
5312201210311300
613124253351212
71311410156603
oct225717576730
956835312258
1020120010200
118595248504
123a96198508
131b885063a4
14d8c20533a
157cb574785
hex4af3efdd8

20120010200 has 48 divisors (see below), whose sum is σ = 46798507680. Its totient is φ = 8044652160.

The previous prime is 20120010199. The next prime is 20120010217. The reversal of 20120010200 is 201002102.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 491729 + ... + 531071.

It is an arithmetic number, because the mean of its divisors is an integer number (974968910).

Almost surely, 220120010200 is an apocalyptic number.

20120010200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120010200 is an abundant number, since it is smaller than the sum of its proper divisors (26678497480).

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

20120010200 is a wasteful number, since it uses less digits than its factorization.

20120010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41916 (or 41907 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20120010200 its reverse (201002102), we get a palindrome (20321012302).

The spelling of 20120010200 in words is "twenty billion, one hundred twenty million, ten thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 2557 5114 10228 12785 20456 25570 39343 51140 63925 78686 102280 127850 157372 196715 255700 314744 393430 511400 786860 983575 1573720 1967150 3934300 7868600 100600051 201200102 402400204 503000255 804800408 1006000510 2012001020 2515001275 4024002040 5030002550 10060005100 20120010200