Search a number
-
+
7828560829 = 43391180419
BaseRepresentation
bin1110100101001111…
…00101101110111101
3202012120211002120101
413102213211232331
5112013102421304
63332453121101
7364666445335
oct72247455675
922176732511
107828560829
113358022691
121625929191
13979b78a1b
145439dc0c5
1530c4338a4
hex1d29e5bbd

7828560829 has 4 divisors (see below), whose sum is σ = 7828784640. Its totient is φ = 7828337020.

The previous prime is 7828560827. The next prime is 7828560841. The reversal of 7828560829 is 9280658287.

It is a happy number.

7828560829 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7828560829 - 21 = 7828560827 is a prime.

It is a super-2 number, since 2×78285608292 (a number of 21 digits) 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 7828560829.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7828560827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46819 + ... + 133600.

It is an arithmetic number, because the mean of its divisors is an integer number (1957196160).

Almost surely, 27828560829 is an apocalyptic number.

It is an amenable number.

7828560829 is a deficient number, since it is larger than the sum of its proper divisors (223811).

7828560829 is a wasteful number, since it uses less digits than its factorization.

7828560829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223810.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 7828560829 is about 88479.1547710533. The cubic root of 7828560829 is about 1985.6101163489.

The spelling of 7828560829 in words is "seven billion, eight hundred twenty-eight million, five hundred sixty thousand, eight hundred twenty-nine".

Divisors: 1 43391 180419 7828560829