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10202100100 = 2252102021001
BaseRepresentation
bin10011000000001011…
…11011000110000100
3222100000001101100021
421200011323012010
5131343214200400
64404202224524
7510550264033
oct114005730604
928300041307
1010202100100
114365901895
121b887b5144
13c6782b62a
146cad3071a
153ea9ce71a
hex26017b184

10202100100 has 18 divisors (see below), whose sum is σ = 22138557434. Its totient is φ = 4080840000.

The previous prime is 10202100079. The next prime is 10202100101. The reversal of 10202100100 is 100120201.

It can be written as a sum of positive squares in 3 ways, for example, as 418120704 + 9783979396 = 20448^2 + 98914^2 .

It is not an unprimeable number, because it can be changed into a prime (10202100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51010401 + ... + 51010600.

Almost surely, 210202100100 is an apocalyptic number.

10202100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10202100100 is an abundant number, since it is smaller than the sum of its proper divisors (11936457334).

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

10202100100 is a wasteful number, since it uses less digits than its factorization.

10202100100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102021015 (or 102021008 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 10202100100 its reverse (100120201), we get a palindrome (10302220301).

The spelling of 10202100100 in words is "ten billion, two hundred two million, one hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 102021001 204042002 408084004 510105005 1020210010 2040420020 2550525025 5101050050 10202100100