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1828494269 = 7261213467
BaseRepresentation
bin110110011111100…
…1001101110111101
311201102122010120222
41230333021232331
512221043304034
6501234551125
763211642040
oct15477115675
94642563528
101828494269
11859156898
124304384a5
13231a88894
14134bb2c57
15aa7d612e
hex6cfc9bbd

1828494269 has 4 divisors (see below), whose sum is σ = 2089707744. Its totient is φ = 1567280796.

The previous prime is 1828494259. The next prime is 1828494271. The reversal of 1828494269 is 9624948281.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9624948281 = 13740380637.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1828494269 is a prime.

It is a super-2 number, since 2×18284942692 = 6686782583531688722, 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 1828494269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828494209) 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, 130606727 + ... + 130606740.

It is an arithmetic number, because the mean of its divisors is an integer number (522426936).

Almost surely, 21828494269 is an apocalyptic number.

It is an amenable number.

1828494269 is a deficient number, since it is larger than the sum of its proper divisors (261213475).

1828494269 is an equidigital number, since it uses as much as digits as its factorization.

1828494269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261213474.

The product of its digits is 1990656, while the sum is 53.

The square root of 1828494269 is about 42760.8964943440. The cubic root of 1828494269 is about 1222.8256347364.

The spelling of 1828494269 in words is "one billion, eight hundred twenty-eight million, four hundred ninety-four thousand, two hundred sixty-nine".

Divisors: 1 7 261213467 1828494269