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30868224 = 28340193
BaseRepresentation
bin111010111000…
…0001100000000
32011002021020120
41311300030000
530400240344
63021340240
7523242552
oct165601400
964067216
1030868224
1116473832
12a407680
13651a22a
1441574d2
152a9b219
hex1d70300

30868224 has 36 divisors (see below), whose sum is σ = 82156536. Its totient is φ = 10289152.

The previous prime is 30868199. The next prime is 30868259. The reversal of 30868224 is 42286803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19329 + ... + 20864.

It is an arithmetic number, because the mean of its divisors is an integer number (2282126).

Almost surely, 230868224 is an apocalyptic number.

It is an amenable number.

30868224 is an abundant number, since it is smaller than the sum of its proper divisors (51288312).

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

30868224 is an equidigital number, since it uses as much as digits as its factorization.

30868224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40212 (or 40198 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 30868224 is about 5555.9179259597. The cubic root of 30868224 is about 313.6923162896.

The spelling of 30868224 in words is "thirty million, eight hundred sixty-eight thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 40193 80386 120579 160772 241158 321544 482316 643088 964632 1286176 1929264 2572352 3858528 5144704 7717056 10289408 15434112 30868224