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345130313 = 1131375483
BaseRepresentation
bin10100100100100…
…100010101001001
3220001102102210012
4110210210111021
51201323132223
654125201305
711360362553
oct2444442511
9801372705
10345130313
111678a9570
1297700235
135666c828
1433ba04d3
1520475c78
hex14924549

345130313 has 4 divisors (see below), whose sum is σ = 376505808. Its totient is φ = 313754820.

The previous prime is 345130301. The next prime is 345130337. The reversal of 345130313 is 313031543.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313031543 = 1128457413.

It is a cyclic number.

It is not a de Polignac number, because 345130313 - 210 = 345129289 is a prime.

It is a super-3 number, since 3×3451303133 (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345130393) 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 3 ways as a sum of consecutive naturals, for example, 15687731 + ... + 15687752.

It is an arithmetic number, because the mean of its divisors is an integer number (94126452).

Almost surely, 2345130313 is an apocalyptic number.

It is an amenable number.

345130313 is a deficient number, since it is larger than the sum of its proper divisors (31375495).

345130313 is a wasteful number, since it uses less digits than its factorization.

345130313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31375494.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 345130313 is about 18577.6831978587. The cubic root of 345130313 is about 701.4462025994.

Adding to 345130313 its reverse (313031543), we get a palindrome (658161856).

The spelling of 345130313 in words is "three hundred forty-five million, one hundred thirty thousand, three hundred thirteen".

Divisors: 1 11 31375483 345130313