Search a number
-
+
28615054 = 2132937951
BaseRepresentation
bin110110100101…
…0000110001110
31222211210110211
41231022012032
524311140204
62501153034
7465136546
oct155120616
958753424
1028615054
1115174a06
1296bb77a
135c0b7b0
143b2c326
1527a3804
hex1b4a18e

28615054 has 16 divisors (see below), whose sum is σ = 47819520. Its totient is φ = 12751200.

The previous prime is 28615049. The next prime is 28615061. The reversal of 28615054 is 45051682.

It is a super-3 number, since 3×286150543 (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18222 + ... + 19729.

It is an arithmetic number, because the mean of its divisors is an integer number (2988720).

Almost surely, 228615054 is an apocalyptic number.

28615054 is a deficient number, since it is larger than the sum of its proper divisors (19204466).

28615054 is a wasteful number, since it uses less digits than its factorization.

28615054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37995.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 28615054 is about 5349.3040668857. The cubic root of 28615054 is about 305.8662251489.

The spelling of 28615054 in words is "twenty-eight million, six hundred fifteen thousand, fifty-four".

Divisors: 1 2 13 26 29 58 377 754 37951 75902 493363 986726 1100579 2201158 14307527 28615054