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30454112 = 2513193853
BaseRepresentation
bin111010000101…
…1000101100000
32010022020012002
41310023011200
530244012422
63004423132
7516566333
oct164130540
963266162
1030454112
1116210697
12a247aa8
1364038b0
14408a61a
152a18692
hex1d0b160

30454112 has 48 divisors (see below), whose sum is σ = 67984560. Its totient is φ = 13312512.

The previous prime is 30454091. The next prime is 30454117. The reversal of 30454112 is 21145403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30454117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5978 + ... + 9830.

It is an arithmetic number, because the mean of its divisors is an integer number (1416345).

Almost surely, 230454112 is an apocalyptic number.

30454112 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 30454112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33992280).

30454112 is an abundant number, since it is smaller than the sum of its proper divisors (37530448).

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

30454112 is a wasteful number, since it uses less digits than its factorization.

30454112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3895 (or 3887 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30454112 is about 5518.5244404641. The cubic root of 30454112 is about 312.2832186134.

Adding to 30454112 its reverse (21145403), we get a palindrome (51599515).

The spelling of 30454112 in words is "thirty million, four hundred fifty-four thousand, one hundred twelve".

Divisors: 1 2 4 8 13 16 19 26 32 38 52 76 104 152 208 247 304 416 494 608 988 1976 3853 3952 7706 7904 15412 30824 50089 61648 73207 100178 123296 146414 200356 292828 400712 585656 801424 951691 1171312 1602848 1903382 2342624 3806764 7613528 15227056 30454112