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3838020 = 2235471361
BaseRepresentation
bin1110101001000001000100
321012222202220
432221001010
51440304040
6214132340
744423364
oct16510104
97188686
103838020
11219161a
1213510b0
13a44c24
1471c9a4
1550c2d0
hex3a9044

3838020 has 48 divisors (see below), whose sum is σ = 10983168. Its totient is φ = 1000960.

The previous prime is 3838013. The next prime is 3838027. The reversal of 3838020 is 208383.

It is an interprime number because it is at equal distance from previous prime (3838013) and next prime (3838027).

It is a super-4 number, since 4×38380204 (a number of 27 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (3838027) 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, 2140 + ... + 3500.

It is an arithmetic number, because the mean of its divisors is an integer number (228816).

Almost surely, 23838020 is an apocalyptic number.

3838020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3838020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5491584).

3838020 is an abundant number, since it is smaller than the sum of its proper divisors (7145148).

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

3838020 is a wasteful number, since it uses less digits than its factorization.

3838020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 3838020 is about 1959.0865218259. The cubic root of 3838020 is about 156.5677863044.

The spelling of 3838020 in words is "three million, eight hundred thirty-eight thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 47 60 94 141 188 235 282 470 564 705 940 1361 1410 2722 2820 4083 5444 6805 8166 13610 16332 20415 27220 40830 63967 81660 127934 191901 255868 319835 383802 639670 767604 959505 1279340 1919010 3838020