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2012331029 = 8922610461
BaseRepresentation
bin111011111110001…
…1011110000010101
312012020120000012212
41313330123300111
513110124043104
6531403123205
7100603350212
oct16774336025
95166500185
102012331029
119429aa0a5
12481b13505
13260ba3c27
14151388b09
15bb9eb36e
hex77f1bc15

2012331029 has 4 divisors (see below), whose sum is σ = 2034941580. Its totient is φ = 1989720480.

The previous prime is 2012331023. The next prime is 2012331037. The reversal of 2012331029 is 9201332102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9201332102 = 24600666051.

It can be written as a sum of positive squares in 2 ways, for example, as 1361979025 + 650352004 = 36905^2 + 25502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012331029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012330995 and 2012331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012331023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11305142 + ... + 11305319.

It is an arithmetic number, because the mean of its divisors is an integer number (508735395).

Almost surely, 22012331029 is an apocalyptic number.

It is an amenable number.

2012331029 is a deficient number, since it is larger than the sum of its proper divisors (22610551).

2012331029 is an equidigital number, since it uses as much as digits as its factorization.

2012331029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22610550.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2012331029 is about 44859.0127956468. The cubic root of 2012331029 is about 1262.5051003160.

The spelling of 2012331029 in words is "two billion, twelve million, three hundred thirty-one thousand, twenty-nine".

Divisors: 1 89 22610461 2012331029