Search a number
-
+
15284920494 = 238039316891
BaseRepresentation
bin11100011110000110…
…10110000010101110
31110110020021102010110
432033003112002232
5222300414423434
611004412520450
71050526452264
oct161703260256
943406242113
1015284920494
116533a36aa8
122b66a80126
13159789726c
14a4ddd0434
155e6d454e9
hex38f0d60ae

15284920494 has 16 divisors (see below), whose sum is σ = 30573740160. Its totient is φ = 5094323640.

The previous prime is 15284920493. The next prime is 15284920501. The reversal of 15284920494 is 49402948251.

15284920494 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15284920493) by changing a digit.

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, 110212 + ... + 206679.

It is an arithmetic number, because the mean of its divisors is an integer number (1910858760).

Almost surely, 215284920494 is an apocalyptic number.

15284920494 is an abundant number, since it is smaller than the sum of its proper divisors (15288819666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15284920494 is a wasteful number, since it uses less digits than its factorization.

15284920494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324935.

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 15284920494 in words is "fifteen billion, two hundred eighty-four million, nine hundred twenty thousand, four hundred ninety-four".

Divisors: 1 2 3 6 8039 16078 24117 48234 316891 633782 950673 1901346 2547486749 5094973498 7642460247 15284920494