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128247014 = 274171571
BaseRepresentation
bin1111010010011…
…10010011100110
322221022121211102
413221032103212
5230312401024
620420440102
73115040000
oct751162346
9287277742
10128247014
1166434975
1236b49032
132075390c
1413065370
15b3d41ae
hex7a4e4e6

128247014 has 40 divisors (see below), whose sum is σ = 237771288. Its totient is φ = 51696960.

The previous prime is 128246959. The next prime is 128247029. The reversal of 128247014 is 410742821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 80849 + ... + 82419.

Almost surely, 2128247014 is an apocalyptic number.

128247014 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

128247014 is a deficient number, since it is larger than the sum of its proper divisors (109524274).

128247014 is an equidigital number, since it uses as much as digits as its factorization.

128247014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 128247014 is about 11324.6198170181. The cubic root of 128247014 is about 504.2923972045.

Adding to 128247014 its reverse (410742821), we get a palindrome (538989835).

The spelling of 128247014 in words is "one hundred twenty-eight million, two hundred forty-seven thousand, fourteen".

Divisors: 1 2 7 14 17 34 49 98 119 238 343 686 833 1571 1666 2401 3142 4802 5831 10997 11662 21994 26707 40817 53414 76979 81634 153958 186949 373898 538853 1077706 1308643 2617286 3771971 7543942 9160501 18321002 64123507 128247014