Search a number
-
+
2815164 = 2232117109
BaseRepresentation
bin1010101111010010111100
312022000200100
422233102330
51210041124
6140201100
732633322
oct12572274
95260610
102815164
111653090
12b39190
137774a1
14533d12
153a91c9
hex2af4bc

2815164 has 36 divisors (see below), whose sum is σ = 7764120. Its totient is φ = 852960.

The previous prime is 2815157. The next prime is 2815171. The reversal of 2815164 is 4615182.

It is an interprime number because it is at equal distance from previous prime (2815157) and next prime (2815171).

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 3159 + ... + 3950.

It is an arithmetic number, because the mean of its divisors is an integer number (215670).

22815164 is an apocalyptic number.

It is an amenable number.

2815164 is an abundant number, since it is smaller than the sum of its proper divisors (4948956).

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

2815164 is a wasteful number, since it uses less digits than its factorization.

2815164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130 (or 7125 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2815164 is about 1677.8450464808. The cubic root of 2815164 is about 141.1999577344.

It can be divided in two parts, 281 and 5164, that added together give a palindrome (5445).

The spelling of 2815164 in words is "two million, eight hundred fifteen thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 7109 14218 21327 28436 42654 63981 78199 85308 127962 156398 234597 255924 312796 469194 703791 938388 1407582 2815164