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2100300210 = 232523336669
BaseRepresentation
bin111110100110000…
…0000100110110010
312102101002022020200
41331030000212302
513300134101320
6544224420030
7103022154141
oct17514004662
95371068220
102100300210
119886236a8
124a7477616
132761946b8
1415cd27758
15c45c6290
hex7d3009b2

2100300210 has 24 divisors (see below), whose sum is σ = 5460780780. Its totient is φ = 560080032.

The previous prime is 2100300193. The next prime is 2100300217. The reversal of 2100300210 is 120030012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1909777401 + 190522809 = 43701^2 + 13803^2 .

It is a super-2 number, since 2×21003002102 = 8822521944252088200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2100300192 and 2100300201.

It is not an unprimeable number, because it can be changed into a prime (2100300217) 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, 11668245 + ... + 11668424.

Almost surely, 22100300210 is an apocalyptic number.

2100300210 is an abundant number, since it is smaller than the sum of its proper divisors (3360480570).

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

2100300210 is a wasteful number, since it uses less digits than its factorization.

2100300210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23336682 (or 23336679 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2100300210 is about 45829.0323921420. The cubic root of 2100300210 is about 1280.6401847261.

Adding to 2100300210 its reverse (120030012), we get a palindrome (2220330222).

The spelling of 2100300210 in words is "two billion, one hundred million, three hundred thousand, two hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 23336669 46673338 70010007 116683345 140020014 210030021 233366690 350050035 420060042 700100070 1050150105 2100300210