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2138482 = 23173373
BaseRepresentation
bin1000001010000101110010
311000122110001
420022011302
51021412412
6113500214
724114433
oct10120562
94018401
102138482
111230745
1287166a
1359b498
143d948a
152c3957
hex20a172

2138482 has 8 divisors (see below), whose sum is σ = 3218796. Its totient is φ = 1065552.

The previous prime is 2138467. The next prime is 2138483. The reversal of 2138482 is 2848312.

It can be written as a sum of positive squares in 2 ways, for example, as 2128681 + 9801 = 1459^2 + 99^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 25 + 1 + 34 + 85 + 44 + 87 + 213 .

It is a self number, because there is not a number n which added to its sum of digits gives 2138482.

It is not an unprimeable number, because it can be changed into a prime (2138483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053 + ... + 2320.

22138482 is an apocalyptic number.

2138482 is a deficient number, since it is larger than the sum of its proper divisors (1080314).

2138482 is a wasteful number, since it uses less digits than its factorization.

2138482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692.

The product of its digits is 3072, while the sum is 28.

The square root of 2138482 is about 1462.3549500720. The cubic root of 2138482 is about 128.8353968914.

It can be divided in two parts, 21 and 38482, that added together give a triangular number (38503 = T277).

The spelling of 2138482 in words is "two million, one hundred thirty-eight thousand, four hundred eighty-two".

Divisors: 1 2 317 634 3373 6746 1069241 2138482