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30832117 = 191622743
BaseRepresentation
bin111010110011…
…1010111110101
32011000102201021
41311213113311
530343111432
63020501141
7523032361
oct165472765
964012637
1030832117
1116449698
12a3aa7b1
136506974
1441482a1
152a90697
hex1d675f5

30832117 has 4 divisors (see below), whose sum is σ = 32454880. Its totient is φ = 29209356.

The previous prime is 30832111. The next prime is 30832147. The reversal of 30832117 is 71123803.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30832117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30832091 and 30832100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30832111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811353 + ... + 811390.

It is an arithmetic number, because the mean of its divisors is an integer number (8113720).

Almost surely, 230832117 is an apocalyptic number.

It is an amenable number.

30832117 is a deficient number, since it is larger than the sum of its proper divisors (1622763).

30832117 is a wasteful number, since it uses less digits than its factorization.

30832117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622762.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 30832117 is about 5552.6675571296. The cubic root of 30832117 is about 313.5699584502.

The spelling of 30832117 in words is "thirty million, eight hundred thirty-two thousand, one hundred seventeen".

Divisors: 1 19 1622743 30832117