Search a number
-
+
30654912 = 263672383
BaseRepresentation
bin111010011110…
…0000111000000
32010200102122010
41310330013000
530321424122
63013012520
7521363631
oct164740700
963612563
1030654912
1116338542
12a324140
136474102
1440dd888
152a57e0c
hex1d3c1c0

30654912 has 56 divisors (see below), whose sum is σ = 82352896. Its totient is φ = 10061568.

The previous prime is 30654887. The next prime is 30654913. The reversal of 30654912 is 21945603.

It is a self number, because there is not a number n which added to its sum of digits gives 30654912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30654913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11673 + ... + 14055.

Almost surely, 230654912 is an apocalyptic number.

30654912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30654912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41176448).

30654912 is an abundant number, since it is smaller than the sum of its proper divisors (51697984).

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

30654912 is a wasteful number, since it uses less digits than its factorization.

30654912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465 (or 2455 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30654912 is about 5536.6878185428. The cubic root of 30654912 is about 312.9680648722.

The spelling of 30654912 in words is "thirty million, six hundred fifty-four thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 67 96 134 192 201 268 402 536 804 1072 1608 2144 2383 3216 4288 4766 6432 7149 9532 12864 14298 19064 28596 38128 57192 76256 114384 152512 159661 228768 319322 457536 478983 638644 957966 1277288 1915932 2554576 3831864 5109152 7663728 10218304 15327456 30654912