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128326053 = 397440983
BaseRepresentation
bin1111010011000…
…01100110100101
322221110122020210
413221201212211
5230322413203
620422250033
73115516302
oct751414645
9287418223
10128326053
1166489299
1236b86919
132078089b
14130860a9
15b3ec803
hex7a619a5

128326053 has 8 divisors (see below), whose sum is σ = 172865728. Its totient is φ = 84668544.

The previous prime is 128325983. The next prime is 128326097. The reversal of 128326053 is 350623821.

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

It is not a de Polignac number, because 128326053 - 28 = 128325797 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128326053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128326153) 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, 220201 + ... + 220782.

It is an arithmetic number, because the mean of its divisors is an integer number (21608216).

Almost surely, 2128326053 is an apocalyptic number.

It is an amenable number.

128326053 is a deficient number, since it is larger than the sum of its proper divisors (44539675).

128326053 is an equidigital number, since it uses as much as digits as its factorization.

128326053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441083.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 128326053 is about 11328.1089772300. The cubic root of 128326053 is about 504.3959748759.

Adding to 128326053 its reverse (350623821), we get a palindrome (478949874).

The spelling of 128326053 in words is "one hundred twenty-eight million, three hundred twenty-six thousand, fifty-three".

Divisors: 1 3 97 291 440983 1322949 42775351 128326053