Search a number
-
+
299167380 = 223251662041
BaseRepresentation
bin10001110101001…
…110111010010100
3202211221021111100
4101311032322110
51103041324010
645404110100
710261611051
oct2165167224
9684837440
10299167380
11143965976
1284235330
1349c98b25
142ba38028
151b3e72c0
hex11d4ee94

299167380 has 36 divisors (see below), whose sum is σ = 907474932. Its totient is φ = 79777920.

The previous prime is 299167373. The next prime is 299167381. The reversal of 299167380 is 83761992.

It can be written as a sum of positive squares in 2 ways, for example, as 218921616 + 80245764 = 14796^2 + 8958^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2991673802 = 179002242512128800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (299167381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 830841 + ... + 831200.

It is an arithmetic number, because the mean of its divisors is an integer number (25207637).

Almost surely, 2299167380 is an apocalyptic number.

299167380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299167380 is an abundant number, since it is smaller than the sum of its proper divisors (608307552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

299167380 is a wasteful number, since it uses less digits than its factorization.

299167380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662056 (or 1662051 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 299167380 is about 17296.4557063001. The cubic root of 299167380 is about 668.8130615118.

The spelling of 299167380 in words is "two hundred ninety-nine million, one hundred sixty-seven thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 1662041 3324082 4986123 6648164 8310205 9972246 14958369 16620410 19944492 24930615 29916738 33240820 49861230 59833476 74791845 99722460 149583690 299167380