Search a number
-
+
3099245 = 5619849
BaseRepresentation
bin1011110100101001101101
312211110100212
423310221231
51243133440
6150232205
735225462
oct13645155
95743325
103099245
111827566
121055665
13846896
145a9669
15413465
hex2f4a6d

3099245 has 4 divisors (see below), whose sum is σ = 3719100. Its totient is φ = 2479392.

The previous prime is 3099241. The next prime is 3099269. The reversal of 3099245 is 5429903.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5429903 = 53102451.

It can be written as a sum of positive squares in 2 ways, for example, as 2111209 + 988036 = 1453^2 + 994^2 .

It is a cyclic number.

It is not a de Polignac number, because 3099245 - 22 = 3099241 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3099241) 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 3 ways as a sum of consecutive naturals, for example, 309920 + ... + 309929.

It is an arithmetic number, because the mean of its divisors is an integer number (929775).

Almost surely, 23099245 is an apocalyptic number.

It is an amenable number.

3099245 is a deficient number, since it is larger than the sum of its proper divisors (619855).

3099245 is an equidigital number, since it uses as much as digits as its factorization.

3099245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619854.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 3099245 is about 1760.4672675173. The cubic root of 3099245 is about 145.7981353603.

The spelling of 3099245 in words is "three million, ninety-nine thousand, two hundred forty-five".

Divisors: 1 5 619849 3099245