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2530155 = 35168677
BaseRepresentation
bin1001101001101101101011
311202112201110
421221231223
51121431110
6130121403
730335355
oct11515553
94675643
102530155
111478a41
12a20263
136a7844
1449c0d5
1534ea20
hex269b6b

2530155 has 8 divisors (see below), whose sum is σ = 4048272. Its totient is φ = 1349408.

The previous prime is 2530153. The next prime is 2530159. The reversal of 2530155 is 5510352.

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

It is a cyclic number.

It is not a de Polignac number, because 2530155 - 21 = 2530153 is a prime.

2530155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2530153) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 84324 + ... + 84353.

It is an arithmetic number, because the mean of its divisors is an integer number (506034).

22530155 is an apocalyptic number.

2530155 is a deficient number, since it is larger than the sum of its proper divisors (1518117).

2530155 is a wasteful number, since it uses less digits than its factorization.

2530155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168685.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 2530155 is about 1590.6460951450. The cubic root of 2530155 is about 136.2643898053.

The spelling of 2530155 in words is "two million, five hundred thirty thousand, one hundred fifty-five".

Divisors: 1 3 5 15 168677 506031 843385 2530155