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339980240 = 2454249753
BaseRepresentation
bin10100010000111…
…010111111010000
3212200201210012202
4110100322333100
51144013331430
653422542332
711265533015
oct2420727720
9780653182
10339980240
11164a01206
1295a379a8
1355588652
143321d70c
151eca9d45
hex1443afd0

339980240 has 20 divisors (see below), whose sum is σ = 790454244. Its totient is φ = 135992064.

The previous prime is 339980209. The next prime is 339980261. The reversal of 339980240 is 42089933.

It can be written as a sum of positive squares in 2 ways, for example, as 170668096 + 169312144 = 13064^2 + 13012^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 339980194 and 339980203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2124797 + ... + 2124956.

Almost surely, 2339980240 is an apocalyptic number.

It is an amenable number.

339980240 is an abundant number, since it is smaller than the sum of its proper divisors (450474004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

339980240 is a wasteful number, since it uses less digits than its factorization.

339980240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4249766 (or 4249760 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 339980240 is about 18438.5530885696. The cubic root of 339980240 is about 697.9396832963.

The spelling of 339980240 in words is "three hundred thirty-nine million, nine hundred eighty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4249753 8499506 16999012 21248765 33998024 42497530 67996048 84995060 169990120 339980240