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128000088441 = 3231238472
BaseRepresentation
bin111011100110101100…
…1100101100101111001
3110020101112202012201100
41313031121211211321
54044121010312231
6134445154042013
712150650541261
oct1671531454571
9406345665640
10128000088441
114a314792a65
1220982b79309
13c0bb75b804
1462a3a347a1
1534e24bc1e6
hex1dcd665979

128000088441 has 27 divisors (see below), whose sum is σ = 191095244613. Its totient is φ = 82559235960.

The previous prime is 128000088347. The next prime is 128000088467. The reversal of 128000088441 is 144880000821.

It is a happy number.

The square root of 128000088441 is 357771.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2k-128000088441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128000088396 and 128000088405.

It is not an unprimeable number, because it can be changed into a prime (128000088481) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 33270780 + ... + 33274626.

Almost surely, 2128000088441 is an apocalyptic number.

128000088441 is the 357771-st square number.

128000088441 is the 178886-th centered octagonal number.

It is an amenable number.

128000088441 is a deficient number, since it is larger than the sum of its proper divisors (63095156172).

128000088441 is an frugal number, since it uses more digits than its factorization.

128000088441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7762 (or 3881 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

Multiplying 128000088441 by its sum of digits (36), we get a square (4608003183876 = 21466262).

The spelling of 128000088441 in words is "one hundred twenty-eight billion, eighty-eight thousand, four hundred forty-one".

Divisors: 1 3 9 31 93 279 961 2883 3847 8649 11541 34623 119257 357771 1073313 3696967 11090901 14799409 33272703 44398227 133194681 458781679 1376345037 4129035111 14222232049 42666696147 128000088441