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2012404091 = 31611064201
BaseRepresentation
bin111011111110010…
…1101100101111011
312012020200201102212
41313330231211323
513110133412331
6531404445335
7100604103215
oct16774554573
95166621385
102012404091
11942a49a85
12481b4984b
13260bcb269
141513a75b5
15bba12d2b
hex77f2d97b

2012404091 has 8 divisors (see below), whose sum is σ = 2111376768. Its totient is φ = 1915560000.

The previous prime is 2012404073. The next prime is 2012404109. The reversal of 2012404091 is 1904042102.

It is an interprime number because it is at equal distance from previous prime (2012404073) and next prime (2012404109).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2012404091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2012404991) 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, 530210 + ... + 533991.

It is an arithmetic number, because the mean of its divisors is an integer number (263922096).

Almost surely, 22012404091 is an apocalyptic number.

2012404091 is a deficient number, since it is larger than the sum of its proper divisors (98972677).

2012404091 is a wasteful number, since it uses less digits than its factorization.

2012404091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064293.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2012404091 is about 44859.8271396580. The cubic root of 2012404091 is about 1262.5203794508.

Adding to 2012404091 its reverse (1904042102), we get a palindrome (3916446193).

The spelling of 2012404091 in words is "two billion, twelve million, four hundred four thousand, ninety-one".

Divisors: 1 31 61 1891 1064201 32990231 64916261 2012404091