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30707307 = 323411923
BaseRepresentation
bin111010100100…
…0111001101011
32010210002111200
41311020321223
530330113212
63014055243
7522002451
oct165107153
963702450
1030707307
1116373944
12a34a523
136491c07
1441149d1
152a686dc
hex1d48e6b

30707307 has 6 divisors (see below), whose sum is σ = 44355012. Its totient is φ = 20471532.

The previous prime is 30707293. The next prime is 30707351. The reversal of 30707307 is 70370703.

It is not a de Polignac number, because 30707307 - 27 = 30707179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30707357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1705953 + ... + 1705970.

It is an arithmetic number, because the mean of its divisors is an integer number (7392502).

Almost surely, 230707307 is an apocalyptic number.

30707307 is a deficient number, since it is larger than the sum of its proper divisors (13647705).

30707307 is a wasteful number, since it uses less digits than its factorization.

30707307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411929 (or 3411926 counting only the distinct ones).

The product of its (nonzero) digits is 3087, while the sum is 27.

The square root of 30707307 is about 5541.4174179536. The cubic root of 30707307 is about 313.1462704424.

The spelling of 30707307 in words is "thirty million, seven hundred seven thousand, three hundred seven".

Divisors: 1 3 9 3411923 10235769 30707307