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345320121 = 3382330109
BaseRepresentation
bin10100100101010…
…010101010111001
3220001210002011010
4110211102222321
51201400220441
654133224133
711362113126
oct2445225271
9801702133
10345320121
11167a19133
1297792049
1356708043
1433c0d74d
15204b2116
hex14952ab9

345320121 has 8 divisors (see below), whose sum is σ = 460562560. Its totient is φ = 230145552.

The previous prime is 345320093. The next prime is 345320141. The reversal of 345320121 is 121023543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 345320121 - 27 = 345319993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345320141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3586 + ... + 26523.

It is an arithmetic number, because the mean of its divisors is an integer number (57570320).

Almost surely, 2345320121 is an apocalyptic number.

It is an amenable number.

345320121 is a deficient number, since it is larger than the sum of its proper divisors (115242439).

345320121 is a wasteful number, since it uses less digits than its factorization.

345320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33935.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 345320121 is about 18582.7909905913. The cubic root of 345320121 is about 701.5747682416.

Adding to 345320121 its reverse (121023543), we get a palindrome (466343664).

The spelling of 345320121 in words is "three hundred forty-five million, three hundred twenty thousand, one hundred twenty-one".