Search a number
-
+
25530384 = 2431148353
BaseRepresentation
bin110000101100…
…1000000010000
31210001002002210
41201121000100
523013433014
62311112120
7430001415
oct141310020
953032083
1025530384
11134583a0
128672640
13539b749
14356810c
152394859
hex1859010

25530384 has 40 divisors (see below), whose sum is σ = 71950752. Its totient is φ = 7736320.

The previous prime is 25530383. The next prime is 25530403. The reversal of 25530384 is 48303552.

It is a hoax number, since the sum of its digits (30) 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 (25530383) 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, 23649 + ... + 24704.

Almost surely, 225530384 is an apocalyptic number.

25530384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25530384 is an abundant number, since it is smaller than the sum of its proper divisors (46420368).

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

25530384 is a wasteful number, since it uses less digits than its factorization.

25530384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48375 (or 48369 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 25530384 is about 5052.7600378407. The cubic root of 25530384 is about 294.4551236769.

The spelling of 25530384 in words is "twenty-five million, five hundred thirty thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 88 132 176 264 528 48353 96706 145059 193412 290118 386824 531883 580236 773648 1063766 1160472 1595649 2127532 2320944 3191298 4255064 6382596 8510128 12765192 25530384