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340238880 = 253652917
BaseRepresentation
bin10100010001111…
…010001000100000
3212201012221000000
4110101322020200
51144100121010
653432300000
711300661042
oct2421721040
9781187000
10340238880
11165068563
1295b41600
13556492a7
1433289a92
151ed0b7c0
hex1447a220

340238880 has 168 divisors, whose sum is σ = 1205583372. Its totient is φ = 90699264.

The previous prime is 340238863. The next prime is 340238903. The reversal of 340238880 is 88832043.

It is a happy number.

340238880 is a `hidden beast` number, since 340 + 238 + 8 + 80 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 309900816 + 30338064 = 17604^2 + 5508^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 115182 + ... + 118098.

Almost surely, 2340238880 is an apocalyptic number.

340238880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340238880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (602791686).

340238880 is an abundant number, since it is smaller than the sum of its proper divisors (865344492).

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

340238880 is an equidigital number, since it uses as much as digits as its factorization.

340238880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950 (or 2927 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 340238880 is about 18445.5653206943. The cubic root of 340238880 is about 698.1166243281.

The spelling of 340238880 in words is "three hundred forty million, two hundred thirty-eight thousand, eight hundred eighty".