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2011210404031 = 5591359722841
BaseRepresentation
bin11101010001000101011…
…110110101000010111111
321010021021201012101021101
4131101011132311002333
5230422424330412111
64135534242513531
7265206445236523
oct35210536650277
97107251171241
102011210404031
11705a49928304
122859523658a7
1311786bc4973a
146d4b368dd83
15374b227dbc1
hex1d4457b50bf

2011210404031 has 4 divisors (see below), whose sum is σ = 2011570132464. Its totient is φ = 2010850675600.

The previous prime is 2011210404023. The next prime is 2011210404041. The reversal of 2011210404031 is 1304040121102.

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

It is a cyclic number.

It is not a de Polignac number, because 2011210404031 - 23 = 2011210404023 is a prime.

It is a super-2 number, since 2×20112104040312 (a number of 25 digits) 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 (2011210404041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179855830 + ... + 179867011.

It is an arithmetic number, because the mean of its divisors is an integer number (502892533116).

Almost surely, 22011210404031 is an apocalyptic number.

2011210404031 is a deficient number, since it is larger than the sum of its proper divisors (359728433).

2011210404031 is an equidigital number, since it uses as much as digits as its factorization.

2011210404031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359728432.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2011210404031 its reverse (1304040121102), we get a palindrome (3315250525133).

The spelling of 2011210404031 in words is "two trillion, eleven billion, two hundred ten million, four hundred four thousand, thirty-one".

Divisors: 1 5591 359722841 2011210404031