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2124756493 = 101193109001
BaseRepresentation
bin111111010100101…
…0011011000001101
312111002002210221221
41332221103120031
513322414201433
6550500523341
7103440063226
oct17651233015
95432083857
102124756493
119a0408002
124b36b0551
1327b278282
1416229224d
15c680772d
hex7ea5360d

2124756493 has 8 divisors (see below), whose sum is σ = 2156931576. Its totient is φ = 2092800000.

The previous prime is 2124756467. The next prime is 2124756521. The reversal of 2124756493 is 3946574212.

It can be written as a sum of positive squares in 4 ways, for example, as 497602249 + 1627154244 = 22307^2 + 40338^2 .

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 2124756493 - 217 = 2124625421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164756493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35008 + ... + 73993.

It is an arithmetic number, because the mean of its divisors is an integer number (269616447).

Almost surely, 22124756493 is an apocalyptic number.

It is an amenable number.

2124756493 is a deficient number, since it is larger than the sum of its proper divisors (32175083).

2124756493 is a wasteful number, since it uses less digits than its factorization.

2124756493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109295.

The product of its digits is 362880, while the sum is 43.

The square root of 2124756493 is about 46095.0810065456. The cubic root of 2124756493 is about 1285.5916856049.

The spelling of 2124756493 in words is "two billion, one hundred twenty-four million, seven hundred fifty-six thousand, four hundred ninety-three".

Divisors: 1 101 193 19493 109001 11009101 21037193 2124756493