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239441980 = 22529412831
BaseRepresentation
bin11100100010110…
…01100000111100
3121200112220122111
432101121200330
5442244120410
635432023404
75635136401
oct1621314074
9550486574
10239441980
11113182338
1268231b64
133a7b6b5b
1423b2c2a8
151604ab8a
hexe45983c

239441980 has 24 divisors (see below), whose sum is σ = 520168320. Its totient is φ = 92473920.

The previous prime is 239441977. The next prime is 239441981. The reversal of 239441980 is 89144932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239441981) 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, 205836 + ... + 206995.

It is an arithmetic number, because the mean of its divisors is an integer number (21673680).

Almost surely, 2239441980 is an apocalyptic number.

239441980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

239441980 is an abundant number, since it is smaller than the sum of its proper divisors (280726340).

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

239441980 is a wasteful number, since it uses less digits than its factorization.

239441980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412869 (or 412867 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 239441980 is about 15473.9128858864. The cubic root of 239441980 is about 620.9644891240.

The spelling of 239441980 in words is "two hundred thirty-nine million, four hundred forty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 412831 825662 1651324 2064155 4128310 8256620 11972099 23944198 47888396 59860495 119720990 239441980