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30907200 = 2635247137
BaseRepresentation
bin111010111100…
…1101101000000
32011011020201010
41311321231000
530403012300
63022240520
7523464312
oct165715500
964136633
1030907200
11164a0045
12a426140
136531bac
1441677b2
152aa7a50
hex1d79b40

30907200 has 168 divisors, whose sum is σ = 104314752. Its totient is φ = 8007680.

The previous prime is 30907199. The next prime is 30907229. The reversal of 30907200 is 270903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 225532 + ... + 225668.

Almost surely, 230907200 is an apocalyptic number.

30907200 is a gapful number since it is divisible by the number (30) 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 30907200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52157376).

30907200 is an abundant number, since it is smaller than the sum of its proper divisors (73407552).

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

30907200 is a wasteful number, since it uses less digits than its factorization.

30907200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 30907200 is about 5559.4244306403. The cubic root of 30907200 is about 313.8242894300.

The spelling of 30907200 in words is "thirty million, nine hundred seven thousand, two hundred".