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30682630 = 2511733821
BaseRepresentation
bin111010100001…
…0111000000110
32010201211122201
41311002320012
530323321010
63013345114
7521540506
oct165027006
963654581
1030682630
1116357350
12a33819a
136483904
144109a06
152a6123a
hex1d42e06

30682630 has 32 divisors (see below), whose sum is σ = 61090848. Its totient is φ = 11001600.

The previous prime is 30682627. The next prime is 30682649. The reversal of 30682630 is 3628603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6120 + ... + 9940.

It is an arithmetic number, because the mean of its divisors is an integer number (1909089).

Almost surely, 230682630 is an apocalyptic number.

30682630 is a deficient number, since it is larger than the sum of its proper divisors (30408218).

30682630 is a wasteful number, since it uses less digits than its factorization.

30682630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3912.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 30682630 is about 5539.1903740529. The cubic root of 30682630 is about 313.0623644475.

The spelling of 30682630 in words is "thirty million, six hundred eighty-two thousand, six hundred thirty".

Divisors: 1 2 5 10 11 22 55 73 110 146 365 730 803 1606 3821 4015 7642 8030 19105 38210 42031 84062 210155 278933 420310 557866 1394665 2789330 3068263 6136526 15341315 30682630