Search a number
-
+
2027860 = 225412473
BaseRepresentation
bin111101111000101010100
310211000200221
413233011110
51004342420
6111244124
723144062
oct7570524
93730627
102027860
11116561a
12819644
13560023
143ab032
152a0caa
hex1ef154

2027860 has 24 divisors (see below), whose sum is σ = 4364136. Its totient is φ = 791040.

The previous prime is 2027843. The next prime is 2027869. The reversal of 2027860 is 687202.

It can be written as a sum of positive squares in 4 ways, for example, as 56644 + 1971216 = 238^2 + 1404^2 .

It is a super-2 number, since 2×20278602 = 8224432359200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2027869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417 + ... + 2056.

It is an arithmetic number, because the mean of its divisors is an integer number (181839).

22027860 is an apocalyptic number.

2027860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2027860 is an abundant number, since it is smaller than the sum of its proper divisors (2336276).

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

2027860 is a wasteful number, since it uses less digits than its factorization.

2027860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523 (or 2521 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2027860 is about 1424.0294940766. The cubic root of 2027860 is about 126.5744327011.

The spelling of 2027860 in words is "two million, twenty-seven thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 2473 4946 9892 12365 24730 49460 101393 202786 405572 506965 1013930 2027860