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299143404 = 223271577561
BaseRepresentation
bin10001110101001…
…001000011101100
3202211220001121100
4101311021003230
51103040042104
645403403100
710261451130
oct2165110354
9684801540
10299143404
1114394995a
1284223490
1349c8ac41
142ba2d3c0
151b3e0139
hex11d490ec

299143404 has 72 divisors (see below), whose sum is σ = 869811488. Its totient is φ = 84913920.

The previous prime is 299143379. The next prime is 299143417. The reversal of 299143404 is 404341992.

299143404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 35784 + ... + 43344.

Almost surely, 2299143404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 299143404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434905744).

299143404 is an abundant number, since it is smaller than the sum of its proper divisors (570668084).

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

299143404 is a wasteful number, since it uses less digits than its factorization.

299143404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7735 (or 7730 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 299143404 is about 17295.7626024411. The cubic root of 299143404 is about 668.7951942671.

The spelling of 299143404 in words is "two hundred ninety-nine million, one hundred forty-three thousand, four hundred four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 157 252 314 471 628 942 1099 1413 1884 2198 2826 3297 4396 5652 6594 7561 9891 13188 15122 19782 22683 30244 39564 45366 52927 68049 90732 105854 136098 158781 211708 272196 317562 476343 635124 952686 1187077 1905372 2374154 3561231 4748308 7122462 8309539 10683693 14244924 16619078 21367386 24928617 33238156 42734772 49857234 74785851 99714468 149571702 299143404