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345407155 = 5673102647
BaseRepresentation
bin10100100101100…
…111111010110011
3220001221111112121
4110211213322303
51201411012110
654135135111
711362624642
oct2445477263
9801844477
10345407155
11167a78565
1297814497
1356738842
1433c33359
15204cccda
hex14967eb3

345407155 has 8 divisors (see below), whose sum is σ = 415108512. Its totient is φ = 275912448.

The previous prime is 345407149. The next prime is 345407189. The reversal of 345407155 is 551704543.

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

It is a cyclic number.

It is not a de Polignac number, because 345407155 - 211 = 345405107 is a prime.

It is a super-2 number, since 2×3454071552 = 238612205450388050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345407155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47959 + ... + 54688.

It is an arithmetic number, because the mean of its divisors is an integer number (51888564).

Almost surely, 2345407155 is an apocalyptic number.

345407155 is a deficient number, since it is larger than the sum of its proper divisors (69701357).

345407155 is a wasteful number, since it uses less digits than its factorization.

345407155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103325.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 345407155 is about 18585.1326333712. The cubic root of 345407155 is about 701.6337045981.

The spelling of 345407155 in words is "three hundred forty-five million, four hundred seven thousand, one hundred fifty-five".

Divisors: 1 5 673 3365 102647 513235 69081431 345407155