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128423470335 = 3523409910127
BaseRepresentation
bin111011110011010100…
…0101010010011111111
3110021111001102020111020
41313212220222103333
54101002402022320
6134555200355223
712164311325646
oct1674650522377
9407431366436
10128423470335
114a511779056
1220a80915b13
13c158398944
146303d6435d
15351974d940
hex1de6a2a4ff

128423470335 has 32 divisors (see below), whose sum is σ = 214935828480. Its totient is φ = 65354327808.

The previous prime is 128423470309. The next prime is 128423470337. The reversal of 128423470335 is 533074324821.

It is not a de Polignac number, because 128423470335 - 217 = 128423339263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128423470337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313959 + ... + 596168.

It is an arithmetic number, because the mean of its divisors is an integer number (6716744640).

Almost surely, 2128423470335 is an apocalyptic number.

128423470335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

128423470335 is a deficient number, since it is larger than the sum of its proper divisors (86512358145).

128423470335 is a wasteful number, since it uses less digits than its factorization.

128423470335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910567.

The product of its (nonzero) digits is 483840, while the sum is 42.

The spelling of 128423470335 in words is "one hundred twenty-eight billion, four hundred twenty-three million, four hundred seventy thousand, three hundred thirty-five".

Divisors: 1 3 5 15 23 69 115 345 409 1227 2045 6135 9407 28221 47035 141105 910127 2730381 4550635 13651905 20932921 62798763 104664605 313993815 372241943 1116725829 1861209715 5583629145 8561564689 25684694067 42807823445 128423470335