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30434971 = 738911177
BaseRepresentation
bin111010000011…
…0011010011011
32010021020221011
41310012122123
530242404341
63004154351
7516456460
oct164063233
963236834
1030434971
11161a8276
12a2389b7
1363c7c78
144083667
152a12b81
hex1d0669b

30434971 has 8 divisors (see below), whose sum is σ = 34875360. Its totient is φ = 26017728.

The previous prime is 30434959. The next prime is 30435001. The reversal of 30434971 is 17943403.

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

It is a cyclic number.

It is not a de Polignac number, because 30434971 - 27 = 30434843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30404971) by changing a digit.

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, 2866 + ... + 8311.

It is an arithmetic number, because the mean of its divisors is an integer number (4359420).

Almost surely, 230434971 is an apocalyptic number.

30434971 is a deficient number, since it is larger than the sum of its proper divisors (4440389).

30434971 is a wasteful number, since it uses less digits than its factorization.

30434971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11573.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30434971 is about 5516.7899180592. The cubic root of 30434971 is about 312.2177795486.

The spelling of 30434971 in words is "thirty million, four hundred thirty-four thousand, nine hundred seventy-one".

Divisors: 1 7 389 2723 11177 78239 4347853 30434971