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345205077 = 3717966961
BaseRepresentation
bin10100100100110…
…110100101010101
3220001120020100020
4110210312211111
51201333030302
654130535353
711361123540
oct2444664525
9801506306
10345205077
1116794a758
1297737559
1356697879
1433bbd857
152048cebc
hex14936955

345205077 has 16 divisors (see below), whose sum is σ = 556970112. Its totient is φ = 185656320.

The previous prime is 345205061. The next prime is 345205087. The reversal of 345205077 is 770502543.

It is not a de Polignac number, because 345205077 - 24 = 345205061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345205027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483124 + ... + 483837.

It is an arithmetic number, because the mean of its divisors is an integer number (34810632).

Almost surely, 2345205077 is an apocalyptic number.

It is an amenable number.

345205077 is a deficient number, since it is larger than the sum of its proper divisors (211765035).

345205077 is a wasteful number, since it uses less digits than its factorization.

345205077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966988.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 345205077 is about 18579.6952881365. The cubic root of 345205077 is about 701.4968493026.

The spelling of 345205077 in words is "three hundred forty-five million, two hundred five thousand, seventy-seven".

Divisors: 1 3 7 17 21 51 119 357 966961 2900883 6768727 16438337 20306181 49315011 115068359 345205077