Search a number
-
+
1828000280 = 23545700007
BaseRepresentation
bin110110011110101…
…0001001000011000
311201101201000222002
41230331101020120
512220432002110
6501220220132
763204513611
oct15475211030
94641630862
101828000280
11858949737
1243023a648
13231944a92
14134ac4c08
15aa739aa5
hex6cf51218

1828000280 has 16 divisors (see below), whose sum is σ = 4113000720. Its totient is φ = 731200096.

The previous prime is 1828000277. The next prime is 1828000289. The reversal of 1828000280 is 820008281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828000289) 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, 22849964 + ... + 22850043.

It is an arithmetic number, because the mean of its divisors is an integer number (257062545).

Almost surely, 21828000280 is an apocalyptic number.

1828000280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1828000280 is an abundant number, since it is smaller than the sum of its proper divisors (2285000440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1828000280 is a wasteful number, since it uses less digits than its factorization.

1828000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45700018 (or 45700014 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 1828000280 is about 42755.1199273257. The cubic root of 1828000280 is about 1222.7155046275.

The spelling of 1828000280 in words is "one billion, eight hundred twenty-eight million, two hundred eighty", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 20 40 45700007 91400014 182800028 228500035 365600056 457000070 914000140 1828000280