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2018291010100 = 225220182910101
BaseRepresentation
bin11101010111101011100…
…001001100101000110100
321010221120011121102210121
4131113223201030220310
5231031424444310400
64143105020501324
7265550063345101
oct35275341145064
97127504542717
102018291010100
11708a52727462
122871a96aa844
13118429b65881
146d985bcdaa8
1537778bbb21a
hex1d5eb84ca34

2018291010100 has 18 divisors (see below), whose sum is σ = 4379691492134. Its totient is φ = 807316404000.

The previous prime is 2018291010091. The next prime is 2018291010187. The reversal of 2018291010100 is 10101928102.

It can be written as a sum of positive squares in 3 ways, for example, as 288932004 + 2018002078096 = 16998^2 + 1420564^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10091454951 + ... + 10091455150.

Almost surely, 22018291010100 is an apocalyptic number.

2018291010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018291010100 is an abundant number, since it is smaller than the sum of its proper divisors (2361400482034).

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

2018291010100 is a wasteful number, since it uses less digits than its factorization.

2018291010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20182910115 (or 20182910108 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 25.

Adding to 2018291010100 its reverse (10101928102), we get a palindrome (2028392938202).

The spelling of 2018291010100 in words is "two trillion, eighteen billion, two hundred ninety-one million, ten thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 20182910101 40365820202 80731640404 100914550505 201829101010 403658202020 504572752525 1009145505050 2018291010100