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2120300101 = 2777654513
BaseRepresentation
bin111111001100001…
…0011011001000101
312110202201101221101
41332120103121011
513320244100401
6550221220101
7103354152643
oct17630233105
95422641841
102120300101
11998943937
124b2101631
1327a377a5a
14161852193
15c6227101
hex7e613645

2120300101 has 4 divisors (see below), whose sum is σ = 2127954892. Its totient is φ = 2112645312.

The previous prime is 2120300099. The next prime is 2120300131. The reversal of 2120300101 is 1010030212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 710222500 + 1410077601 = 26650^2 + 37551^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120300101 - 21 = 2120300099 is a prime.

It is a super-2 number, since 2×21203001012 = 8991345036601220402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120300131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3826980 + ... + 3827533.

It is an arithmetic number, because the mean of its divisors is an integer number (531988723).

Almost surely, 22120300101 is an apocalyptic number.

It is an amenable number.

2120300101 is a deficient number, since it is larger than the sum of its proper divisors (7654791).

2120300101 is an equidigital number, since it uses as much as digits as its factorization.

2120300101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7654790.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2120300101 is about 46046.7165061745. The cubic root of 2120300101 is about 1284.6922710860.

Adding to 2120300101 its reverse (1010030212), we get a palindrome (3130330313).

The spelling of 2120300101 in words is "two billion, one hundred twenty million, three hundred thousand, one hundred one".

Divisors: 1 277 7654513 2120300101