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30310112 = 257472879
BaseRepresentation
bin111001110011…
…1111011100000
32010000220122202
41303213323200
530224410422
63001352332
7515426450
oct163477340
963026582
1030310112
1116122488
12a1986a8
1363831a1
14404dd60
1529dab92
hex1ce7ee0

30310112 has 48 divisors (see below), whose sum is σ = 69672960. Its totient is φ = 12709248.

The previous prime is 30310097. The next prime is 30310121. The reversal of 30310112 is 21101303.

It is a junction number, because it is equal to n+sod(n) for n = 30310093 and 30310102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9089 + ... + 11967.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 230310112 is an apocalyptic number.

30310112 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 30310112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34836480).

30310112 is an abundant number, since it is smaller than the sum of its proper divisors (39362848).

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

30310112 is a wasteful number, since it uses less digits than its factorization.

30310112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943 (or 2935 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 30310112 is about 5505.4620151264. The cubic root of 30310112 is about 311.7902381424.

Adding to 30310112 its reverse (21101303), we get a palindrome (51411415).

The spelling of 30310112 in words is "thirty million, three hundred ten thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 32 47 56 94 112 188 224 329 376 658 752 1316 1504 2632 2879 5264 5758 10528 11516 20153 23032 40306 46064 80612 92128 135313 161224 270626 322448 541252 644896 947191 1082504 1894382 2165008 3788764 4330016 7577528 15155056 30310112