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2012623331 = 4754179153
BaseRepresentation
bin111011111110110…
…0011000111100011
312012021002212011212
41313331203013203
513110212421311
6531413300335
7100606005335
oct16775430743
95167085155
102012623331
11943089774
124820346ab
13260c76ca4
14151423455
15bba57c8b
hex77f631e3

2012623331 has 8 divisors (see below), whose sum is σ = 2059270464. Its totient is φ = 1966135680.

The previous prime is 2012623309. The next prime is 2012623337. The reversal of 2012623331 is 1333262102.

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 2012623331 - 230 = 938881507 is a prime.

It is a super-2 number, since 2×20126233312 = 8101305344971071122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2012623297 and 2012623306.

It is not an unprimeable number, because it can be changed into a prime (2012623337) 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, 14150 + ... + 65003.

It is an arithmetic number, because the mean of its divisors is an integer number (257408808).

Almost surely, 22012623331 is an apocalyptic number.

2012623331 is a deficient number, since it is larger than the sum of its proper divisors (46647133).

2012623331 is an equidigital number, since it uses as much as digits as its factorization.

2012623331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79741.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 2012623331 is about 44862.2706848416. The cubic root of 2012623331 is about 1262.5662259283.

Adding to 2012623331 its reverse (1333262102), we get a palindrome (3345885433).

The spelling of 2012623331 in words is "two billion, twelve million, six hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 47 541 25427 79153 3720191 42821773 2012623331