Search a number
-
+
28114446155 = 517931412789
BaseRepresentation
bin11010001011110000…
…000110011101001011
32200120100021211202112
4122023300012131023
5430034244234110
620525434052535
72013462564215
oct321360063513
980510254675
1028114446155
1110a17965574
12554757a14b
13286084ba73
141509c615b5
15ae8321405
hex68bc0674b

28114446155 has 8 divisors (see below), whose sum is σ = 33925813200. Its totient is φ = 22365905056.

The previous prime is 28114446149. The next prime is 28114446163. The reversal of 28114446155 is 55164441182.

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

It is a cyclic number.

It is not a de Polignac number, because 28114446155 - 234 = 10934576971 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15705500 + ... + 15707289.

It is an arithmetic number, because the mean of its divisors is an integer number (4240726650).

Almost surely, 228114446155 is an apocalyptic number.

28114446155 is a deficient number, since it is larger than the sum of its proper divisors (5811367045).

28114446155 is a wasteful number, since it uses less digits than its factorization.

28114446155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31412973.

The product of its digits is 153600, while the sum is 41.

The spelling of 28114446155 in words is "twenty-eight billion, one hundred fourteen million, four hundred forty-six thousand, one hundred fifty-five".

Divisors: 1 5 179 895 31412789 157063945 5622889231 28114446155