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30710913 = 329834253
BaseRepresentation
bin111010100100…
…1110010000001
32010210021110020
41311021302001
530330222123
63014124053
7522016122
oct165116201
963707406
1030710913
1116376622
12a350629
13649374c
144116049
152a697e3
hex1d49c81

30710913 has 16 divisors (see below), whose sum is σ = 42880320. Its totient is φ = 19525184.

The previous prime is 30710909. The next prime is 30710917. The reversal of 30710913 is 31901703.

It is an interprime number because it is at equal distance from previous prime (30710909) and next prime (30710917).

It is a cyclic number.

It is not a de Polignac number, because 30710913 - 22 = 30710909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30710917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5095 + ... + 9347.

It is an arithmetic number, because the mean of its divisors is an integer number (2680020).

Almost surely, 230710913 is an apocalyptic number.

It is an amenable number.

30710913 is a deficient number, since it is larger than the sum of its proper divisors (12169407).

30710913 is a wasteful number, since it uses less digits than its factorization.

30710913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368.

The product of its (nonzero) digits is 567, while the sum is 24.

The square root of 30710913 is about 5541.7427764197. The cubic root of 30710913 is about 313.1585276907.

The spelling of 30710913 in words is "thirty million, seven hundred ten thousand, nine hundred thirteen".

Divisors: 1 3 29 83 87 249 2407 4253 7221 12759 123337 352999 370011 1058997 10236971 30710913