Search a number
-
+
28327954 = 229503971
BaseRepresentation
bin110110000010…
…0000000010010
31222022012122111
41230010000102
524222443304
62451055534
7462532534
oct154040022
958265574
1028327954
1114a99236
1295a15aa
135b3ac05
143a95854
152748704
hex1b04012

28327954 has 16 divisors (see below), whose sum is σ = 44089920. Its totient is φ = 13634320.

The previous prime is 28327951. The next prime is 28327963. The reversal of 28327954 is 45972382.

It is a super-2 number, since 2×283279542 = 1604945955652232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28327951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28689 + ... + 29659.

It is an arithmetic number, because the mean of its divisors is an integer number (2755620).

Almost surely, 228327954 is an apocalyptic number.

28327954 is a deficient number, since it is larger than the sum of its proper divisors (15761966).

28327954 is a wasteful number, since it uses less digits than its factorization.

28327954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505.

The product of its digits is 120960, while the sum is 40.

The square root of 28327954 is about 5322.4011498571. The cubic root of 28327954 is about 304.8398478385.

It can be divided in two parts, 2832795 and 4, that multiplied together give a triangular number (11331180 = T4760).

The spelling of 28327954 in words is "twenty-eight million, three hundred twenty-seven thousand, nine hundred fifty-four".

Divisors: 1 2 29 58 503 971 1006 1942 14587 28159 29174 56318 488413 976826 14163977 28327954