Search a number
-
+
15028401 = 337135391
BaseRepresentation
bin111001010101…
…000010110001
31001021112002110
4321111002301
512321402101
61254035533
7241511403
oct71250261
931245073
1015028401
118535073
125048ba9
13316255b
141dd2b73
1514bccd6
hexe550b1

15028401 has 8 divisors (see below), whose sum is σ = 20579584. Its totient is φ = 9748080.

The previous prime is 15028369. The next prime is 15028423. The reversal of 15028401 is 10482051.

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

It is not a de Polignac number, because 15028401 - 25 = 15028369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15028001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67585 + ... + 67806.

It is an arithmetic number, because the mean of its divisors is an integer number (2572448).

Almost surely, 215028401 is an apocalyptic number.

It is an amenable number.

15028401 is a deficient number, since it is larger than the sum of its proper divisors (5551183).

15028401 is a wasteful number, since it uses less digits than its factorization.

15028401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135431.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 15028401 is about 3876.6481656194. The cubic root of 15028401 is about 246.7767601645.

The spelling of 15028401 in words is "fifteen million, twenty-eight thousand, four hundred one".

Divisors: 1 3 37 111 135391 406173 5009467 15028401