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345081130 = 25172029889
BaseRepresentation
bin10100100100011…
…000010100101010
3220001022221022121
4110210120110222
51201320044010
654124141454
711360066302
oct2444302452
9801287277
10345081130
11167875619
129769788a
1356653324
1433b8a602
15204663da
hex1491852a

345081130 has 16 divisors (see below), whose sum is σ = 657684360. Its totient is φ = 129912832.

The previous prime is 345081109. The next prime is 345081137. The reversal of 345081130 is 31180543.

It can be written as a sum of positive squares in 4 ways, for example, as 305655289 + 39425841 = 17483^2 + 6279^2 .

It is a junction number, because it is equal to n+sod(n) for n = 345081095 and 345081104.

It is not an unprimeable number, because it can be changed into a prime (345081137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014775 + ... + 1015114.

Almost surely, 2345081130 is an apocalyptic number.

345081130 is a deficient number, since it is larger than the sum of its proper divisors (312603230).

345081130 is a wasteful number, since it uses less digits than its factorization.

345081130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029913.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 345081130 is about 18576.3594388136. The cubic root of 345081130 is about 701.4128810141.

The spelling of 345081130 in words is "three hundred forty-five million, eighty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 2029889 4059778 10149445 20298890 34508113 69016226 172540565 345081130