Search a number
-
+
30864544 = 25964517
BaseRepresentation
bin111010110111…
…1010010100000
32011002002012021
41311233102200
530400131134
63021311224
7523226044
oct165572240
964062167
1030864544
1116470a97
12a405514
136518659
144156024
152a9a0b4
hex1d6f4a0

30864544 has 12 divisors (see below), whose sum is σ = 60764634. Its totient is φ = 15432256.

The previous prime is 30864541. The next prime is 30864553. The reversal of 30864544 is 44546803.

It can be written as a sum of positive squares in only one way, i.e., 27667600 + 3196944 = 5260^2 + 1788^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30864541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 482227 + ... + 482290.

Almost surely, 230864544 is an apocalyptic number.

It is an amenable number.

30864544 is a deficient number, since it is larger than the sum of its proper divisors (29900090).

30864544 is an equidigital number, since it uses as much as digits as its factorization.

30864544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964527 (or 964519 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 30864544 is about 5555.5867376903. The cubic root of 30864544 is about 313.6798500331.

The spelling of 30864544 in words is "thirty million, eight hundred sixty-four thousand, five hundred forty-four".

Divisors: 1 2 4 8 16 32 964517 1929034 3858068 7716136 15432272 30864544