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2880965 = 5576193
BaseRepresentation
bin1010111111010111000101
312102100221102
422333113011
51214142330
6141425445
733326213
oct12772705
95370842
102880965
11169856a
12b6b285
1379b419
1454dcb3
153bd945
hex2bf5c5

2880965 has 4 divisors (see below), whose sum is σ = 3457164. Its totient is φ = 2304768.

The previous prime is 2880949. The next prime is 2880991. The reversal of 2880965 is 5690882.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 982081 + 1898884 = 991^2 + 1378^2 .

It is a cyclic number.

It is not a de Polignac number, because 2880965 - 24 = 2880949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288092 + ... + 288101.

It is an arithmetic number, because the mean of its divisors is an integer number (864291).

22880965 is an apocalyptic number.

It is an amenable number.

2880965 is a deficient number, since it is larger than the sum of its proper divisors (576199).

2880965 is an equidigital number, since it uses as much as digits as its factorization.

2880965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576198.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 2880965 is about 1697.3405668869. The cubic root of 2880965 is about 142.2916211553.

The spelling of 2880965 in words is "two million, eight hundred eighty thousand, nine hundred sixty-five".

Divisors: 1 5 576193 2880965