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128226373 = 1118164403
BaseRepresentation
bin1111010010010…
…01010001000101
322221021120111221
413221021101011
5230311220443
620420200341
73114622552
oct751112105
9287246457
10128226373
1166420410
1236b390b1
13207473c2
141305ba29
15b3cceed
hex7a49445

128226373 has 8 divisors (see below), whose sum is σ = 140658336. Its totient is φ = 115923600.

The previous prime is 128226367. The next prime is 128226377. The reversal of 128226373 is 373622821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128226373 - 25 = 128226341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128226377) 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, 30211 + ... + 34192.

It is an arithmetic number, because the mean of its divisors is an integer number (17582292).

Almost surely, 2128226373 is an apocalyptic number.

It is an amenable number.

128226373 is a deficient number, since it is larger than the sum of its proper divisors (12431963).

128226373 is a wasteful number, since it uses less digits than its factorization.

128226373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64595.

The product of its digits is 24192, while the sum is 34.

The square root of 128226373 is about 11323.7084473241. The cubic root of 128226373 is about 504.2653409336.

The spelling of 128226373 in words is "one hundred twenty-eight million, two hundred twenty-six thousand, three hundred seventy-three".

Divisors: 1 11 181 1991 64403 708433 11656943 128226373