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20201011120 = 245318145569
BaseRepresentation
bin10010110100000100…
…101111011110110000
31221010211202200200001
4102310010233132300
5312332424323440
613140305435344
71313412522103
oct226404573660
957124680601
1020201011120
118626a42714
123ab933bb54
131b9c227224
14d98c8c73a
157d3724b9a
hex4b412f7b0

20201011120 has 40 divisors (see below), whose sum is σ = 48482432640. Its totient is φ = 7819745280.

The previous prime is 20201011097. The next prime is 20201011183. The reversal of 20201011120 is 2111010202.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20201011097 and 20201011106.

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, 4070305 + ... + 4075264.

It is an arithmetic number, because the mean of its divisors is an integer number (1212060816).

Almost surely, 220201011120 is an apocalyptic number.

20201011120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201011120 is an abundant number, since it is smaller than the sum of its proper divisors (28281421520).

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

20201011120 is a wasteful number, since it uses less digits than its factorization.

20201011120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8145613 (or 8145607 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20201011120 its reverse (2111010202), we get a palindrome (22312021322).

The spelling of 20201011120 in words is "twenty billion, two hundred one million, eleven thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 31 40 62 80 124 155 248 310 496 620 1240 2480 8145569 16291138 32582276 40727845 65164552 81455690 130329104 162911380 252512639 325822760 505025278 651645520 1010050556 1262563195 2020101112 2525126390 4040202224 5050252780 10100505560 20201011120