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2915125 = 5323321
BaseRepresentation
bin1011000111101100110101
312111002210121
423013230311
51221241000
6142251541
733530623
oct13075465
95432717
102915125
1117111a4
12b86bb1
137b0b35
1455c513
153c8b1a
hex2c7b35

2915125 has 8 divisors (see below), whose sum is σ = 3638232. Its totient is φ = 2332000.

The previous prime is 2915123. The next prime is 2915137. The reversal of 2915125 is 5215192.

It can be written as a sum of positive squares in 4 ways, for example, as 152881 + 2762244 = 391^2 + 1662^2 .

It is not a de Polignac number, because 2915125 - 21 = 2915123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 2915125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2915123) 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, 11536 + ... + 11785.

It is an arithmetic number, because the mean of its divisors is an integer number (454779).

22915125 is an apocalyptic number.

2915125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2915125 is a deficient number, since it is larger than the sum of its proper divisors (723107).

2915125 is an equidigital number, since it uses as much as digits as its factorization.

2915125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23336 (or 23326 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 2915125 is about 1707.3737142172. The cubic root of 2915125 is about 142.8518033719.

The spelling of 2915125 in words is "two million, nine hundred fifteen thousand, one hundred twenty-five".

Divisors: 1 5 25 125 23321 116605 583025 2915125