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299200340 = 22517880001
BaseRepresentation
bin10001110101010…
…110111101010100
3202211222221201002
4101311112331110
51103043402330
645404522432
710262106125
oct2165267524
9684887632
10299200340
1114398870a
1284250418
1349caab2a
142ba4604c
151b401e45
hex11d56f54

299200340 has 24 divisors (see below), whose sum is σ = 665281512. Its totient is φ = 112640000.

The previous prime is 299200339. The next prime is 299200351. The reversal of 299200340 is 43002992.

It can be written as a sum of positive squares in 4 ways, for example, as 148303684 + 150896656 = 12178^2 + 12284^2 .

It is a super-2 number, since 2×2992003402 = 179041686912231200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439661 + ... + 440340.

It is an arithmetic number, because the mean of its divisors is an integer number (27720063).

Almost surely, 2299200340 is an apocalyptic number.

299200340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

299200340 is an abundant number, since it is smaller than the sum of its proper divisors (366081172).

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

299200340 is a wasteful number, since it uses less digits than its factorization.

299200340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880027 (or 880025 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 299200340 is about 17297.4084764163. The cubic root of 299200340 is about 668.8376221987.

The spelling of 299200340 in words is "two hundred ninety-nine million, two hundred thousand, three hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 880001 1760002 3520004 4400005 8800010 14960017 17600020 29920034 59840068 74800085 149600170 299200340