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345345241 = 1999172759
BaseRepresentation
bin10100100101011…
…000110011011001
3220001211100121111
4110211120303121
51201402021431
654133540321
711362246303
oct2445306331
9801740544
10345345241
11167a35a9a
12977a46a1
13567165c7
1433c18973
15204b97b1
hex14958cd9

345345241 has 4 divisors (see below), whose sum is σ = 345520000. Its totient is φ = 345170484.

The previous prime is 345345233. The next prime is 345345251. The reversal of 345345241 is 142543543.

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.

It is a cyclic number.

It is not a de Polignac number, because 345345241 - 23 = 345345233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345345251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84381 + ... + 88378.

It is an arithmetic number, because the mean of its divisors is an integer number (86380000).

Almost surely, 2345345241 is an apocalyptic number.

It is an amenable number.

345345241 is a deficient number, since it is larger than the sum of its proper divisors (174759).

345345241 is a wasteful number, since it uses less digits than its factorization.

345345241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174758.

The product of its digits is 28800, while the sum is 31.

The square root of 345345241 is about 18583.4668724649. The cubic root of 345345241 is about 701.5917796366.

Adding to 345345241 its reverse (142543543), we get a palindrome (487888784).

The spelling of 345345241 in words is "three hundred forty-five million, three hundred forty-five thousand, two hundred forty-one".

Divisors: 1 1999 172759 345345241