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339819749 = 17157127321
BaseRepresentation
bin10100010000010…
…011110011100101
3212200102122001122
4110100103303211
51143443212444
653415303325
711264264063
oct2420236345
9780378048
10339819749
11164901675
129597ab45
1355530599
14331bb033
151ec774ee
hex14413ce5

339819749 has 8 divisors (see below), whose sum is σ = 362103768. Its totient is φ = 317790720.

The previous prime is 339819743. The next prime is 339819761. The reversal of 339819749 is 947918933.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149572900 + 190246849 = 12230^2 + 13793^2 .

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 339819749 - 216 = 339754213 is a prime.

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 339819749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (339819743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60992 + ... + 66329.

It is an arithmetic number, because the mean of its divisors is an integer number (45262971).

Almost surely, 2339819749 is an apocalyptic number.

It is an amenable number.

339819749 is a deficient number, since it is larger than the sum of its proper divisors (22284019).

339819749 is a wasteful number, since it uses less digits than its factorization.

339819749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127495.

The product of its digits is 1469664, while the sum is 53.

The square root of 339819749 is about 18434.2005251109. The cubic root of 339819749 is about 697.8298429244.

The spelling of 339819749 in words is "three hundred thirty-nine million, eight hundred nineteen thousand, seven hundred forty-nine".

Divisors: 1 17 157 2669 127321 2164457 19989397 339819749