Search a number
-
+
2048605 = 51331517
BaseRepresentation
bin111110100001001011101
310212002011021
413310021131
51011023410
6111524141
723261416
oct7641135
93762137
102048605
11117a169
12829651
135695c0
143b480d
152a6eda
hex1f425d

2048605 has 8 divisors (see below), whose sum is σ = 2647512. Its totient is φ = 1512768.

The previous prime is 2048593. The next prime is 2048621. The reversal of 2048605 is 5068402.

It can be written as a sum of positive squares in 4 ways, for example, as 15129 + 2033476 = 123^2 + 1426^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2048605 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2048605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15694 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (330939).

22048605 is an apocalyptic number.

It is an amenable number.

2048605 is a deficient number, since it is larger than the sum of its proper divisors (598907).

2048605 is a wasteful number, since it uses less digits than its factorization.

2048605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31535.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2048605 is about 1431.2948682923. The cubic root of 2048605 is about 127.0045878434.

The spelling of 2048605 in words is "two million, forty-eight thousand, six hundred five".

Divisors: 1 5 13 65 31517 157585 409721 2048605