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3828769 = 7546967
BaseRepresentation
bin1110100110110000100001
321012112002021
432212300201
51440010034
6214021441
744354410
oct16466041
97175067
103828769
11218567a
121347881
13a40959
14719477
155096b4
hex3a6c21

3828769 has 4 divisors (see below), whose sum is σ = 4375744. Its totient is φ = 3281796.

The previous prime is 3828751. The next prime is 3828821. The reversal of 3828769 is 9678283.

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: 9678283 = 22814243.

It is not a de Polignac number, because 3828769 - 211 = 3826721 is a prime.

It is a super-2 number, since 2×38287692 = 29318944110722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3828719) 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, 273477 + ... + 273490.

It is an arithmetic number, because the mean of its divisors is an integer number (1093936).

Almost surely, 23828769 is an apocalyptic number.

It is an amenable number.

3828769 is a deficient number, since it is larger than the sum of its proper divisors (546975).

3828769 is an equidigital number, since it uses as much as digits as its factorization.

3828769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546974.

The product of its digits is 145152, while the sum is 43.

The square root of 3828769 is about 1956.7240479945. The cubic root of 3828769 is about 156.4418903234.

The spelling of 3828769 in words is "three million, eight hundred twenty-eight thousand, seven hundred sixty-nine".

Divisors: 1 7 546967 3828769