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2849138 = 21424569
BaseRepresentation
bin1010110111100101110010
312100202021122
422313211302
51212133023
6141022242
733134345
oct12674562
95322248
102849138
111676666
12b54982
13789aa6
1454245c
153b42c8
hex2b7972

2849138 has 4 divisors (see below), whose sum is σ = 4273710. Its totient is φ = 1424568.

The previous prime is 2849129. The next prime is 2849153. The reversal of 2849138 is 8319482.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8319482 = 24159741.

It can be written as a sum of positive squares in only one way, i.e., 1697809 + 1151329 = 1303^2 + 1073^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2849098 and 2849107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712283 + ... + 712286.

22849138 is an apocalyptic number.

2849138 is a deficient number, since it is larger than the sum of its proper divisors (1424572).

2849138 is a wasteful number, since it uses less digits than its factorization.

2849138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424571.

The product of its digits is 13824, while the sum is 35.

The square root of 2849138 is about 1687.9389799397. The cubic root of 2849138 is about 141.7656983838.

The spelling of 2849138 in words is "two million, eight hundred forty-nine thousand, one hundred thirty-eight".

Divisors: 1 2 1424569 2849138