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2120423141 = 17130195873
BaseRepresentation
bin111111001100011…
…0001011011100101
312110202221122201102
41332120301123211
513320312020031
6550224005445
7103355204444
oct17630613345
95422848642
102120423141
11998a18321
124b2160885
1327a3bba65
14161884d5b
15c624d7cb
hex7e6316e5

2120423141 has 8 divisors (see below), whose sum is σ = 2246903064. Its totient is φ = 1994137600.

The previous prime is 2120423111. The next prime is 2120423143. The reversal of 2120423141 is 1413240212.

It can be written as a sum of positive squares in 4 ways, for example, as 101808100 + 2018615041 = 10090^2 + 44929^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2120423141 - 26 = 2120423077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120423143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25820 + ... + 70053.

It is an arithmetic number, because the mean of its divisors is an integer number (280862883).

Almost surely, 22120423141 is an apocalyptic number.

It is an amenable number.

2120423141 is a deficient number, since it is larger than the sum of its proper divisors (126479923).

2120423141 is a wasteful number, since it uses less digits than its factorization.

2120423141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97191.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2120423141 is about 46048.0525212522. The cubic root of 2120423141 is about 1284.7171206312.

Adding to 2120423141 its reverse (1413240212), we get a palindrome (3533663353).

The spelling of 2120423141 in words is "two billion, one hundred twenty million, four hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 17 1301 22117 95873 1629841 124730773 2120423141