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344021982 = 23131437687
BaseRepresentation
bin10100100000010…
…101101111011110
3212222100010102220
4110200111233132
51201032200412
654045330210
711345065353
oct2440255736
9788303386
10344021982
11167211897
1297266966
1356372205
143399262a
152030768c
hex14815bde

344021982 has 16 divisors (see below), whose sum is σ = 693297792. Its totient is φ = 113798360.

The previous prime is 344021981. The next prime is 344021989. The reversal of 344021982 is 289120443.

It is a super-2 number, since 2×3440219822 = 236702248198416648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344021981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218058 + ... + 219629.

It is an arithmetic number, because the mean of its divisors is an integer number (43331112).

Almost surely, 2344021982 is an apocalyptic number.

344021982 is an abundant number, since it is smaller than the sum of its proper divisors (349275810).

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

344021982 is a wasteful number, since it uses less digits than its factorization.

344021982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437823.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 344021982 is about 18547.8295765300. The cubic root of 344021982 is about 700.6945365068.

The spelling of 344021982 in words is "three hundred forty-four million, twenty-one thousand, nine hundred eighty-two".

Divisors: 1 2 3 6 131 262 393 786 437687 875374 1313061 2626122 57336997 114673994 172010991 344021982