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20201130100 = 22521311542071
BaseRepresentation
bin10010110100000101…
…001100100001110100
31221010211222201212201
4102310011030201310
5312332442130400
613140312154244
71313413526014
oct226405144164
957124881781
1020201130100
118627014048
123ab9398984
131b9c269428
14d98cbdc44
157d374a06a
hex4b414c874

20201130100 has 36 divisors (see below), whose sum is σ = 44171110368. Its totient is φ = 8018764000.

The previous prime is 20201130077. The next prime is 20201130101. The reversal of 20201130100 is 103110202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201130101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 757936 + ... + 784135.

It is an arithmetic number, because the mean of its divisors is an integer number (1226975288).

Almost surely, 220201130100 is an apocalyptic number.

20201130100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201130100 is an abundant number, since it is smaller than the sum of its proper divisors (23969980268).

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

20201130100 is a wasteful number, since it uses less digits than its factorization.

20201130100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542216 (or 1542209 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20201130100 its reverse (103110202), we get a palindrome (20304240302).

The spelling of 20201130100 in words is "twenty billion, two hundred one million, one hundred thirty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 131 262 524 655 1310 2620 3275 6550 13100 1542071 3084142 6168284 7710355 15420710 30841420 38551775 77103550 154207100 202011301 404022602 808045204 1010056505 2020113010 4040226020 5050282525 10100565050 20201130100