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4200100 = 225297433
BaseRepresentation
bin10000000001011010100100
321220101110021
4100001122210
52033400400
6230004524
750462122
oct20013244
97811407
104200100
112409663
1214a6744
13b40988
147b4912
1557e71a
hex4016a4

4200100 has 36 divisors (see below), whose sum is σ = 9229444. Its totient is φ = 1658880.

The previous prime is 4200073. The next prime is 4200103. The reversal of 4200100 is 10024.

It can be written as a sum of positive squares in 6 ways, for example, as 605284 + 3594816 = 778^2 + 1896^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4200103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9484 + ... + 9916.

Almost surely, 24200100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4614722).

4200100 is an abundant number, since it is smaller than the sum of its proper divisors (5029344).

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

4200100 is a wasteful number, since it uses less digits than its factorization.

4200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544 (or 537 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 4200100 is about 2049.4145505485. The cubic root of 4200100 is about 161.3441450912.

Adding to 4200100 its reverse (10024), we get a palindrome (4210124).

The spelling of 4200100 in words is "four million, two hundred thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 97 100 194 388 433 485 866 970 1732 1940 2165 2425 4330 4850 8660 9700 10825 21650 42001 43300 84002 168004 210005 420010 840020 1050025 2100050 4200100