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2505138 = 23417523
BaseRepresentation
bin1001100011100110110010
311201021101220
421203212302
51120131023
6125405510
730202416
oct11434662
94637356
102505138
111461169
12a09896
1369933c
14492d46
153473e3
hex2639b2

2505138 has 8 divisors (see below), whose sum is σ = 5010288. Its totient is φ = 835044.

The previous prime is 2505133. The next prime is 2505143. The reversal of 2505138 is 8315052.

2505138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2505133) and next prime (2505143).

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

2505138 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2505133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208756 + ... + 208767.

It is an arithmetic number, because the mean of its divisors is an integer number (626286).

22505138 is an apocalyptic number.

2505138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2505138 is a wasteful number, since it uses less digits than its factorization.

2505138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417528.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2505138 is about 1582.7627743917. The cubic root of 2505138 is about 135.8137950578.

The spelling of 2505138 in words is "two million, five hundred five thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 417523 835046 1252569 2505138