Search a number
-
+
128926301 = 722631149
BaseRepresentation
bin1111010111101…
…00001001011101
322222121010122012
413223310021131
5231001120201
620443201005
73123566300
oct753641135
9288533565
10128926301
1166859269
1237216165
1320930b6a
14131a0b37
15b4ba5bb
hex7af425d

128926301 has 6 divisors (see below), whose sum is σ = 149975550. Its totient is φ = 110508216.

The previous prime is 128926279. The next prime is 128926321. The reversal of 128926301 is 103629821.

It can be written as a sum of positive squares in only one way, i.e., 128278276 + 648025 = 11326^2 + 805^2 .

It is not a de Polignac number, because 128926301 - 218 = 128664157 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 (128926321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1315526 + ... + 1315623.

It is an arithmetic number, because the mean of its divisors is an integer number (24995925).

Almost surely, 2128926301 is an apocalyptic number.

It is an amenable number.

128926301 is a deficient number, since it is larger than the sum of its proper divisors (21049249).

128926301 is an equidigital number, since it uses as much as digits as its factorization.

128926301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631163 (or 2631156 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 128926301 is about 11354.5718105088. The cubic root of 128926301 is about 505.1811930271.

The spelling of 128926301 in words is "one hundred twenty-eight million, nine hundred twenty-six thousand, three hundred one".

Divisors: 1 7 49 2631149 18418043 128926301