Search a number
-
+
2012309975 = 521317312379
BaseRepresentation
bin111011111110001…
…0110100111010111
312012020111221100002
41313330112213113
513110122404400
6531402441515
7100603231634
oct16774264727
95166457302
102012309975
119429952a5
12481b0329b
13260b97480
1415138118b
15bb9e4ed5
hex77f169d7

2012309975 has 72 divisors (see below), whose sum is σ = 2947780080. Its totient is φ = 1349913600.

The previous prime is 2012309939. The next prime is 2012309983. The reversal of 2012309975 is 5799032102.

It is a de Polignac number, because none of the positive numbers 2k-2012309975 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5309336 + ... + 5309714.

It is an arithmetic number, because the mean of its divisors is an integer number (40941390).

Almost surely, 22012309975 is an apocalyptic number.

2012309975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2012309975 is a deficient number, since it is larger than the sum of its proper divisors (935470105).

2012309975 is a wasteful number, since it uses less digits than its factorization.

2012309975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 445 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 2012309975 is about 44858.7781264715. The cubic root of 2012309975 is about 1262.5006973169.

The spelling of 2012309975 in words is "two billion, twelve million, three hundred nine thousand, nine hundred seventy-five".

Divisors: 1 5 13 17 25 31 65 85 155 221 325 379 403 425 527 775 961 1105 1895 2015 2635 4805 4927 5525 6443 6851 9475 10075 11749 12493 13175 16337 24025 24635 32215 34255 58745 62465 81685 83759 123175 152737 161075 171275 199733 212381 293725 312325 364219 408425 418795 763685 998665 1061905 1821095 2093975 2596529 3818425 4734847 4993325 5309525 6191723 9105475 12982645 23674235 30958615 64913225 80492399 118371175 154793075 402461995 2012309975