[go: up one dir, main page]

Search a number
-
+
2801249 = 11254659
BaseRepresentation
bin1010101011111001100001
312021022120222
422223321201
51204114444
6140012425
732544623
oct12537141
95238528
102801249
111643690
12b31115
13771059
1452cc13
153a4eee
hex2abe61

2801249 has 4 divisors (see below), whose sum is σ = 3055920. Its totient is φ = 2546580.

The previous prime is 2801237. The next prime is 2801251. The reversal of 2801249 is 9421082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2801249 - 216 = 2735713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2801219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127319 + ... + 127340.

It is an arithmetic number, because the mean of its divisors is an integer number (763980).

22801249 is an apocalyptic number.

It is an amenable number.

2801249 is a deficient number, since it is larger than the sum of its proper divisors (254671).

2801249 is a wasteful number, since it uses less digits than its factorization.

2801249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254670.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 2801249 is about 1673.6932215911. The cubic root of 2801249 is about 140.9669288500.

The spelling of 2801249 in words is "two million, eight hundred one thousand, two hundred forty-nine".

Divisors: 1 11 254659 2801249