Search a number
-
+
1166228247 = 3388742749
BaseRepresentation
bin100010110000011…
…0011101100010111
310000021110112101210
41011200303230113
54342023300442
6311420152503
740620530232
oct10540635427
93007415353
101166228247
1154933a5a8
12286698733
131577cb7b2
14b0c5c419
156c5b919c
hex45833b17

1166228247 has 4 divisors (see below), whose sum is σ = 1554971000. Its totient is φ = 777485496.

The previous prime is 1166228233. The next prime is 1166228267. The reversal of 1166228247 is 7428226611.

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

It is not a de Polignac number, because 1166228247 - 26 = 1166228183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166228207) 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, 194371372 + ... + 194371377.

It is an arithmetic number, because the mean of its divisors is an integer number (388742750).

Almost surely, 21166228247 is an apocalyptic number.

1166228247 is a deficient number, since it is larger than the sum of its proper divisors (388742753).

1166228247 is an equidigital number, since it uses as much as digits as its factorization.

1166228247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388742752.

The product of its digits is 64512, while the sum is 39.

The square root of 1166228247 is about 34150.0841433810. The cubic root of 1166228247 is about 1052.5947156465.

The spelling of 1166228247 in words is "one billion, one hundred sixty-six million, two hundred twenty-eight thousand, two hundred forty-seven".

Divisors: 1 3 388742749 1166228247