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128141234 = 21323214283
BaseRepresentation
bin1111010001101…
…00011110110010
322221010020201122
413220310132302
5230301004414
620414302242
73114116414
oct750643662
9287106648
10128141234
1166372451
1236ab7982
1320717720
14130389b4
15b3b2b8e
hex7a347b2

128141234 has 16 divisors (see below), whose sum is σ = 215998272. Its totient is φ = 56570448.

The previous prime is 128141231. The next prime is 128141243. The reversal of 128141234 is 432141821.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (128141231) 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, 106544 + ... + 107739.

It is an arithmetic number, because the mean of its divisors is an integer number (13499892).

Almost surely, 2128141234 is an apocalyptic number.

128141234 is a deficient number, since it is larger than the sum of its proper divisors (87857038).

128141234 is a wasteful number, since it uses less digits than its factorization.

128141234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214321.

The product of its digits is 1536, while the sum is 26.

The square root of 128141234 is about 11319.9484981161. The cubic root of 128141234 is about 504.1537098356.

The spelling of 128141234 in words is "one hundred twenty-eight million, one hundred forty-one thousand, two hundred thirty-four".

Divisors: 1 2 13 23 26 46 299 598 214283 428566 2785679 4928509 5571358 9857018 64070617 128141234