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30670668 = 22327217387
BaseRepresentation
bin111010011111…
…1111101001100
32010201020020200
41310333331030
530322430133
63013213500
7521460600
oct164777514
963636220
1030670668
1116349366
12a331290
13647b332
144105500
152a5c913
hex1d3ff4c

30670668 has 54 divisors (see below), whose sum is σ = 90191556. Its totient is φ = 8762544.

The previous prime is 30670643. The next prime is 30670727. The reversal of 30670668 is 86607603.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 6930 + ... + 10457.

It is an arithmetic number, because the mean of its divisors is an integer number (1670214).

Almost surely, 230670668 is an apocalyptic number.

It is an amenable number.

30670668 is an abundant number, since it is smaller than the sum of its proper divisors (59520888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30670668 is a wasteful number, since it uses less digits than its factorization.

30670668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17411 (or 17399 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 30670668 is about 5538.1105081065. The cubic root of 30670668 is about 313.0216754239.

The spelling of 30670668 in words is "thirty million, six hundred seventy thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 17387 34774 52161 69548 104322 121709 156483 208644 243418 312966 365127 486836 625932 730254 851963 1095381 1460508 1703926 2190762 2555889 3407852 4381524 5111778 7667667 10223556 15335334 30670668