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128006053 = 752135099
BaseRepresentation
bin1111010000100…
…11011110100101
322220212101021221
413220103132211
5230232143203
620411340341
73113014330
oct750233645
9286771257
10128006053
116628a92a
1236a516b1
132069b036
1413001617
15b387abd
hex7a137a5

128006053 has 8 divisors (see below), whose sum is σ = 146577600. Its totient is φ = 109505760.

The previous prime is 128006041. The next prime is 128006083. The reversal of 128006053 is 350600821.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-128006053 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 (128006023) 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, 13903 + ... + 21196.

It is an arithmetic number, because the mean of its divisors is an integer number (18322200).

Almost surely, 2128006053 is an apocalyptic number.

It is an amenable number.

128006053 is a deficient number, since it is larger than the sum of its proper divisors (18571547).

128006053 is an equidigital number, since it uses as much as digits as its factorization.

128006053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35627.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 128006053 is about 11313.9760031565. The cubic root of 128006053 is about 503.9763638974.

Adding to 128006053 its reverse (350600821), we get a palindrome (478606874).

The spelling of 128006053 in words is "one hundred twenty-eight million, six thousand, fifty-three".

Divisors: 1 7 521 3647 35099 245693 18286579 128006053