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30960340 = 2254213677
BaseRepresentation
bin111011000011…
…0101011010100
32011020221121021
41312012223110
530411212330
63023330524
7524105245
oct166065324
964227537
1030960340
1116526a64
12a450a44
136550138
14417cccc
152ab867a
hex1d86ad4

30960340 has 24 divisors (see below), whose sum is σ = 65188872. Its totient is φ = 12351360.

The previous prime is 30960317. The next prime is 30960353. The reversal of 30960340 is 4306903.

It can be written as a sum of positive squares in 4 ways, for example, as 467856 + 30492484 = 684^2 + 5522^2 .

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 7 ways as a sum of consecutive naturals, for example, 6582 + ... + 10258.

It is an arithmetic number, because the mean of its divisors is an integer number (2716203).

Almost surely, 230960340 is an apocalyptic number.

It is an amenable number.

30960340 is an abundant number, since it is smaller than the sum of its proper divisors (34228532).

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

30960340 is a wasteful number, since it uses less digits than its factorization.

30960340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107 (or 4105 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 30960340 is about 5564.2016498326. The cubic root of 30960340 is about 314.0040433844.

The spelling of 30960340 in words is "thirty million, nine hundred sixty thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 421 842 1684 2105 3677 4210 7354 8420 14708 18385 36770 73540 1548017 3096034 6192068 7740085 15480170 30960340