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2120420041 = 7129865071
BaseRepresentation
bin111111001100011…
…0000101011001001
312110202221111110121
41332120300223021
513320311420131
6550223543241
7103355162425
oct17630605311
95422844417
102120420041
11998a15a63
124b215ab21
1327a3ba51c
14161883b85
15c624c911
hex7e630ac9

2120420041 has 4 divisors (see below), whose sum is σ = 2150285184. Its totient is φ = 2090554900.

The previous prime is 2120420039. The next prime is 2120420051. The reversal of 2120420041 is 1400240212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2120420041 - 21 = 2120420039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120419997 and 2120420024.

It is not an unprimeable number, because it can be changed into a prime (2120420021) 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, 14932465 + ... + 14932606.

It is an arithmetic number, because the mean of its divisors is an integer number (537571296).

Almost surely, 22120420041 is an apocalyptic number.

It is an amenable number.

2120420041 is a deficient number, since it is larger than the sum of its proper divisors (29865143).

2120420041 is an equidigital number, since it uses as much as digits as its factorization.

2120420041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29865142.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2120420041 is about 46048.0188607501. The cubic root of 2120420041 is about 1284.7164945572.

Adding to 2120420041 its reverse (1400240212), we get a palindrome (3520660253).

The spelling of 2120420041 in words is "two billion, one hundred twenty million, four hundred twenty thousand, forty-one".

Divisors: 1 71 29865071 2120420041