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30980224 = 271122003
BaseRepresentation
bin111011000101…
…1100010000000
32011021221212201
41312023202000
530412331344
63024002544
7524220232
oct166134200
964257781
1030980224
111653a9a0
12a460454
1365591c2
144186252
152abe4d4
hex1d8b880

30980224 has 32 divisors (see below), whose sum is σ = 67332240. Its totient is φ = 14081280.

The previous prime is 30980219. The next prime is 30980227. The reversal of 30980224 is 42208903.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 30980192 and 30980201.

It is not an unprimeable number, because it can be changed into a prime (30980227) 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, 9594 + ... + 12409.

Almost surely, 230980224 is an apocalyptic number.

It is an amenable number.

30980224 is an abundant number, since it is smaller than the sum of its proper divisors (36352016).

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

30980224 is a wasteful number, since it uses less digits than its factorization.

30980224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22028 (or 22016 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 30980224 is about 5565.9881422799. The cubic root of 30980224 is about 314.0712510899.

The spelling of 30980224 in words is "thirty million, nine hundred eighty thousand, two hundred twenty-four".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 352 704 1408 22003 44006 88012 176024 242033 352048 484066 704096 968132 1408192 1936264 2816384 3872528 7745056 15490112 30980224