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2530215 = 32559953
BaseRepresentation
bin1001101001101110100111
311202112210200
421221232213
51121431330
6130121543
730335502
oct11515647
94675720
102530215
111478a96
12a202b3
136a788c
1449c139
1534ea60
hex269ba7

2530215 has 24 divisors (see below), whose sum is σ = 4464720. Its totient is φ = 1325184.

The previous prime is 2530201. The next prime is 2530223. The reversal of 2530215 is 5120352.

It is a happy number.

It is not a de Polignac number, because 2530215 - 28 = 2529959 is a prime.

It is a congruent number.

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 in 23 ways as a sum of consecutive naturals, for example, 2179 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (186030).

22530215 is an apocalyptic number.

2530215 is a deficient number, since it is larger than the sum of its proper divisors (1934505).

2530215 is a wasteful number, since it uses less digits than its factorization.

2530215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1020 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2530215 is about 1590.6649552939. The cubic root of 2530215 is about 136.2654669196.

Adding to 2530215 its reverse (5120352), we get a palindrome (7650567).

The spelling of 2530215 in words is "two million, five hundred thirty thousand, two hundred fifteen".

Divisors: 1 3 5 9 15 45 59 177 295 531 885 953 2655 2859 4765 8577 14295 42885 56227 168681 281135 506043 843405 2530215