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2112797519 = 71717754601
BaseRepresentation
bin111110111101110…
…1011101101001111
312110020121020022222
41331323223231033
513311334010034
6545352325555
7103233324350
oct17573535517
95406536288
102112797519
1199468a058
124ab6a38bb
1327894bb61
1416085bd27
15c574412e
hex7deebb4f

2112797519 has 8 divisors (see below), whose sum is σ = 2556662688. Its totient is φ = 1704441600.

The previous prime is 2112797447. The next prime is 2112797521. The reversal of 2112797519 is 9157972112.

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 2112797519 - 220 = 2111748943 is a prime.

It is a super-2 number, since 2×21127975192 = 8927826712585110722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2112797519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112797579) 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 7 ways as a sum of consecutive naturals, for example, 8877182 + ... + 8877419.

It is an arithmetic number, because the mean of its divisors is an integer number (319582836).

Almost surely, 22112797519 is an apocalyptic number.

2112797519 is a deficient number, since it is larger than the sum of its proper divisors (443865169).

2112797519 is a wasteful number, since it uses less digits than its factorization.

2112797519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17754625.

The product of its digits is 79380, while the sum is 44.

The square root of 2112797519 is about 45965.1772432131. The cubic root of 2112797519 is about 1283.1752059663.

The spelling of 2112797519 in words is "two billion, one hundred twelve million, seven hundred ninety-seven thousand, five hundred nineteen".

Divisors: 1 7 17 119 17754601 124282207 301828217 2112797519