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3828540 = 223563809
BaseRepresentation
bin1110100110101100111100
321012111202210
432212230330
51440003130
6214020420
744353632
oct16465474
97174683
103828540
112185491
121347710
13a40811
14719352
155095b0
hex3a6b3c

3828540 has 24 divisors (see below), whose sum is σ = 10720080. Its totient is φ = 1020928.

The previous prime is 3828523. The next prime is 3828571. The reversal of 3828540 is 458283.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 3828498 and 3828507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31845 + ... + 31964.

It is an arithmetic number, because the mean of its divisors is an integer number (446670).

Almost surely, 23828540 is an apocalyptic number.

3828540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3828540 is an abundant number, since it is smaller than the sum of its proper divisors (6891540).

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

3828540 is a wasteful number, since it uses less digits than its factorization.

3828540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63821 (or 63819 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 3828540 is about 1956.6655309480. The cubic root of 3828540 is about 156.4387713133.

The spelling of 3828540 in words is "three million, eight hundred twenty-eight thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 63809 127618 191427 255236 319045 382854 638090 765708 957135 1276180 1914270 3828540