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2010100 = 225220101
BaseRepresentation
bin111101010101111110100
310210010100011
413222233310
51003310400
6111030004
723041231
oct7525764
93703304
102010100
111153244
1280b304
13554c11
143a4788
1529a8ba
hex1eabf4

2010100 has 18 divisors (see below), whose sum is σ = 4362134. Its totient is φ = 804000.

The previous prime is 2010089. The next prime is 2010103. The reversal of 2010100 is 10102.

It can be written as a sum of positive squares in 3 ways, for example, as 55696 + 1954404 = 236^2 + 1398^2 .

It is a Harshad number since it is a multiple of its sum of digits (4).

It is a self number, because there is not a number n which added to its sum of digits gives 2010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9951 + ... + 10150.

22010100 is an apocalyptic number.

2010100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2010100 is an abundant number, since it is smaller than the sum of its proper divisors (2352034).

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

2010100 is a wasteful number, since it uses less digits than its factorization.

2010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20115 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 4.

The square root of 2010100 is about 1417.7799547179. The cubic root of 2010100 is about 126.2038356852.

Adding to 2010100 its reverse (10102), we get a palindrome (2020202).

The spelling of 2010100 in words is "two million, ten thousand, one hundred".