Search a number
-
+
4028500 = 225371151
BaseRepresentation
bin1111010111100001010100
321120200001201
433113201110
52012403000
6222202244
746145620
oct17274124
97520051
104028500
112301743
121423384
13ab0838
1476c180
1554896a
hex3d7854

4028500 has 48 divisors (see below), whose sum is σ = 10063872. Its totient is φ = 1380000.

The previous prime is 4028491. The next prime is 4028533. The reversal of 4028500 is 58204.

It is a happy number.

It is a super-3 number, since 3×40285003 (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2925 + ... + 4075.

It is an arithmetic number, because the mean of its divisors is an integer number (209664).

Almost surely, 24028500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4028500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5031936).

4028500 is an abundant number, since it is smaller than the sum of its proper divisors (6035372).

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

4028500 is a wasteful number, since it uses less digits than its factorization.

4028500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1165 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 4028500 is about 2007.1123536065. The cubic root of 4028500 is about 159.1162210808.

The spelling of 4028500 in words is "four million, twenty-eight thousand, five hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 125 140 175 250 350 500 700 875 1151 1750 2302 3500 4604 5755 8057 11510 16114 23020 28775 32228 40285 57550 80570 115100 143875 161140 201425 287750 402850 575500 805700 1007125 2014250 4028500