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30934161 = 326775077
BaseRepresentation
bin111011000000…
…0010010010001
32011012121200200
41312000102101
530404343121
63023005413
7523636026
oct166002221
964177620
1030934161
1116509325
12a439869
13654124b
14417354d
152ab0a26
hex1d80491

30934161 has 12 divisors (see below), whose sum is σ = 44757492. Its totient is φ = 20588256.

The previous prime is 30934153. The next prime is 30934177. The reversal of 30934161 is 16143903.

It can be written as a sum of positive squares in 2 ways, for example, as 30470400 + 463761 = 5520^2 + 681^2 .

It is not a de Polignac number, because 30934161 - 23 = 30934153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30934121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3555 + ... + 8631.

It is an arithmetic number, because the mean of its divisors is an integer number (3729791).

Almost surely, 230934161 is an apocalyptic number.

It is an amenable number.

30934161 is a deficient number, since it is larger than the sum of its proper divisors (13823331).

30934161 is a wasteful number, since it uses less digits than its factorization.

30934161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760 (or 5757 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 30934161 is about 5561.8487034438. The cubic root of 30934161 is about 313.9155147499.

The spelling of 30934161 in words is "thirty million, nine hundred thirty-four thousand, one hundred sixty-one".

Divisors: 1 3 9 677 2031 5077 6093 15231 45693 3437129 10311387 30934161