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30344832 = 273275371
BaseRepresentation
bin111001111000…
…0011010000000
32010002200021200
41303300122000
530232013312
63002221200
7515632620
oct163603200
963080250
1030344832
1116146581
12a1b4800
136395c2b
14405c880
1529e60dc
hex1cf0680

30344832 has 192 divisors, whose sum is σ = 103109760. Its totient is φ = 8386560.

The previous prime is 30344827. The next prime is 30344849. The reversal of 30344832 is 23844303.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 30344796 and 30344805.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427357 + ... + 427427.

It is an arithmetic number, because the mean of its divisors is an integer number (537030).

Almost surely, 230344832 is an apocalyptic number.

30344832 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 30344832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51554880).

30344832 is an abundant number, since it is smaller than the sum of its proper divisors (72764928).

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

30344832 is a wasteful number, since it uses less digits than its factorization.

30344832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 30344832 is about 5508.6143448239. The cubic root of 30344832 is about 311.9092438199.

The spelling of 30344832 in words is "thirty million, three hundred forty-four thousand, eight hundred thirty-two".