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1828454385 = 35432834813
BaseRepresentation
bin110110011111011…
…1111111111110001
311201102120002212210
41230332333333301
512221041020020
6501234042333
763211414542
oct15476777761
94642502783
101828454385
1185912992a
124304193a9
13231a73694
14134ba24c9
15aa7c93e0
hex6cfbfff1

1828454385 has 16 divisors (see below), whose sum is σ = 2993563584. Its totient is φ = 952496832.

The previous prime is 1828454371. The next prime is 1828454389. The reversal of 1828454385 is 5834548281.

It is not a de Polignac number, because 1828454385 - 223 = 1820065777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1828454389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416762 + ... + 1418051.

It is an arithmetic number, because the mean of its divisors is an integer number (187097724).

Almost surely, 21828454385 is an apocalyptic number.

1828454385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1828454385 is a deficient number, since it is larger than the sum of its proper divisors (1165109199).

1828454385 is a wasteful number, since it uses less digits than its factorization.

1828454385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834864.

The product of its digits is 1228800, while the sum is 48.

The square root of 1828454385 is about 42760.4301311388. The cubic root of 1828454385 is about 1222.8167437173.

The spelling of 1828454385 in words is "one billion, eight hundred twenty-eight million, four hundred fifty-four thousand, three hundred eighty-five".

Divisors: 1 3 5 15 43 129 215 645 2834813 8504439 14174065 42522195 121896959 365690877 609484795 1828454385