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2137888 = 2566809
BaseRepresentation
bin1000001001111100100000
311000121122001
420021330200
51021403023
6113453344
724112624
oct10117440
94017561
102137888
111230255
12871254
1359b12c
143d9184
152c36ad
hex209f20

2137888 has 12 divisors (see below), whose sum is σ = 4209030. Its totient is φ = 1068928.

The previous prime is 2137879. The next prime is 2137907. The reversal of 2137888 is 8887312.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 29584 = 1452^2 + 172^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33373 + ... + 33436.

22137888 is an apocalyptic number.

It is an amenable number.

2137888 is a deficient number, since it is larger than the sum of its proper divisors (2071142).

2137888 is an equidigital number, since it uses as much as digits as its factorization.

2137888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66819 (or 66811 counting only the distinct ones).

The product of its digits is 21504, while the sum is 37.

The square root of 2137888 is about 1462.1518389005. The cubic root of 2137888 is about 128.8234670408.

It can be divided in two parts, 2137 and 888, that added together give a square (3025 = 552).

The spelling of 2137888 in words is "two million, one hundred thirty-seven thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 32 66809 133618 267236 534472 1068944 2137888