Search a number
-
+
2127380 = 225176257
BaseRepresentation
bin1000000111011000010100
311000002012212
420013120110
51021034010
6113332552
724040163
oct10073024
94002185
102127380
111223372
12867158
13596408
143d53da
152c0505
hex207614

2127380 has 24 divisors (see below), whose sum is σ = 4731048. Its totient is φ = 800768.

The previous prime is 2127379. The next prime is 2127383. The reversal of 2127380 is 837212.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 1008016 = 1058^2 + 1004^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127383) 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, 2789 + ... + 3468.

It is an arithmetic number, because the mean of its divisors is an integer number (197127).

22127380 is an apocalyptic number.

2127380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2127380 is an abundant number, since it is smaller than the sum of its proper divisors (2603668).

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

2127380 is a wasteful number, since it uses less digits than its factorization.

2127380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283 (or 6281 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2127380 is about 1458.5540785312. The cubic root of 2127380 is about 128.6120588814.

The spelling of 2127380 in words is "two million, one hundred twenty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 6257 12514 25028 31285 62570 106369 125140 212738 425476 531845 1063690 2127380