Search a number
-
+
28428153 = 313728927
BaseRepresentation
bin110110001110…
…0011101111001
31222111022002120
41230130131321
524234200103
62453151453
7463430625
oct154343571
958438076
1028428153
1115057546
12962b589
135b746c0
143ac0185
152768253
hex1b1c779

28428153 has 8 divisors (see below), whose sum is σ = 40819968. Its totient is φ = 17494224.

The previous prime is 28428143. The next prime is 28428163. The reversal of 28428153 is 35182482.

It is an interprime number because it is at equal distance from previous prime (28428143) and next prime (28428163).

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

It is not a de Polignac number, because 28428153 - 25 = 28428121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28428143) 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, 364425 + ... + 364502.

It is an arithmetic number, because the mean of its divisors is an integer number (5102496).

Almost surely, 228428153 is an apocalyptic number.

It is an amenable number.

28428153 is a deficient number, since it is larger than the sum of its proper divisors (12391815).

28428153 is a wasteful number, since it uses less digits than its factorization.

28428153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728943.

The product of its digits is 15360, while the sum is 33.

The square root of 28428153 is about 5331.8057916620. The cubic root of 28428153 is about 305.1988419413.

The spelling of 28428153 in words is "twenty-eight million, four hundred twenty-eight thousand, one hundred fifty-three".

Divisors: 1 3 13 39 728927 2186781 9476051 28428153