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30085305 = 352005687
BaseRepresentation
bin111001011000…
…1000010111001
32002121111021120
41302301002321
530200212210
62552455453
7513502155
oct162610271
962544246
1030085305
1115a89598
12a0aa589
136304a73
143dd2065
152994270
hex1cb10b9

30085305 has 8 divisors (see below), whose sum is σ = 48136512. Its totient is φ = 16045488.

The previous prime is 30085301. The next prime is 30085309. The reversal of 30085305 is 50358003.

It is an interprime number because it is at equal distance from previous prime (30085301) and next prime (30085309).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30085305 - 22 = 30085301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30085301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002829 + ... + 1002858.

It is an arithmetic number, because the mean of its divisors is an integer number (6017064).

Almost surely, 230085305 is an apocalyptic number.

It is an amenable number.

30085305 is a deficient number, since it is larger than the sum of its proper divisors (18051207).

30085305 is a wasteful number, since it uses less digits than its factorization.

30085305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005695.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 30085305 is about 5485.0072926114. The cubic root of 30085305 is about 311.0174857398.

The spelling of 30085305 in words is "thirty million, eighty-five thousand, three hundred five".

Divisors: 1 3 5 15 2005687 6017061 10028435 30085305