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30641152 = 210231301
BaseRepresentation
bin111010011100…
…0110000000000
32010122201202111
41310320300000
530321004102
63012425104
7521305543
oct164706000
963581674
1030641152
1116329173
12a318194
13646aa79
1440d885a
152a53cd7
hex1d38c00

30641152 has 44 divisors (see below), whose sum is σ = 63964656. Its totient is φ = 14643200.

The previous prime is 30641147. The next prime is 30641159. The reversal of 30641152 is 25114603.

It is not an unprimeable number, because it can be changed into a prime (30641159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22902 + ... + 24202.

Almost surely, 230641152 is an apocalyptic number.

30641152 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 30641152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31982328).

30641152 is an abundant number, since it is smaller than the sum of its proper divisors (33323504).

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

30641152 is a wasteful number, since it uses less digits than its factorization.

30641152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 30641152 is about 5535.4450588909. The cubic root of 30641152 is about 312.9212307784.

Adding to 30641152 its reverse (25114603), we get a palindrome (55755755).

The spelling of 30641152 in words is "thirty million, six hundred forty-one thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 256 368 512 736 1024 1301 1472 2602 2944 5204 5888 10408 11776 20816 23552 29923 41632 59846 83264 119692 166528 239384 333056 478768 666112 957536 1332224 1915072 3830144 7660288 15320576 30641152