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30605344 = 2571112421
BaseRepresentation
bin111010011000…
…0000000100000
32010120220122021
41310300000200
530313332334
63011551224
7521066260
oct164600040
963526567
1030605344
1116304280
12a2bb514
136457693
1440c97a0
152a483b4
hex1d30020

30605344 has 48 divisors (see below), whose sum is σ = 75128256. Its totient is φ = 11923200.

The previous prime is 30605303. The next prime is 30605357. The reversal of 30605344 is 44350603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3747 + ... + 8674.

It is an arithmetic number, because the mean of its divisors is an integer number (1565172).

Almost surely, 230605344 is an apocalyptic number.

It is an amenable number.

30605344 is an abundant number, since it is smaller than the sum of its proper divisors (44522912).

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

30605344 is a wasteful number, since it uses less digits than its factorization.

30605344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12449 (or 12441 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 30605344 is about 5532.2096851078. The cubic root of 30605344 is about 312.7992874616.

Adding to 30605344 its reverse (44350603), we get a palindrome (74955947).

The spelling of 30605344 in words is "thirty million, six hundred five thousand, three hundred forty-four".

Divisors: 1 2 4 7 8 11 14 16 22 28 32 44 56 77 88 112 154 176 224 308 352 616 1232 2464 12421 24842 49684 86947 99368 136631 173894 198736 273262 347788 397472 546524 695576 956417 1093048 1391152 1912834 2186096 2782304 3825668 4372192 7651336 15302672 30605344