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2031202222100 = 225220312022221
BaseRepresentation
bin11101100011101101000…
…101100100000000010100
321012011212222022222000122
4131203231011210000110
5231234400232101400
64153042120531112
7266515041005432
oct35435505440024
97164788288018
102031202222100
117134787790a7
122897b1620a98
13119706a1b19c
147044c845d52
1537c82430685
hex1d8ed164014

2031202222100 has 18 divisors (see below), whose sum is σ = 4407708822174. Its totient is φ = 812480888800.

The previous prime is 2031202222099. The next prime is 2031202222121. The reversal of 2031202222100 is 12222021302.

It can be written as a sum of positive squares in 3 ways, for example, as 295548798736 + 1735653423364 = 543644^2 + 1317442^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 10156011011 + ... + 10156011210.

It is an arithmetic number, because the mean of its divisors is an integer number (244872712343).

Almost surely, 22031202222100 is an apocalyptic number.

2031202222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031202222100 is an abundant number, since it is smaller than the sum of its proper divisors (2376506600074).

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

2031202222100 is a wasteful number, since it uses less digits than its factorization.

2031202222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20312022235 (or 20312022228 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2031202222100 its reverse (12222021302), we get a palindrome (2043424243402).

The spelling of 2031202222100 in words is "two trillion, thirty-one billion, two hundred two million, two hundred twenty-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 20312022221 40624044442 81248088884 101560111105 203120222210 406240444420 507800555525 1015601111050 2031202222100