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16690930 = 2519107821
BaseRepresentation
bin111111101010…
…111011110010
31011101222122121
4333222323302
513233102210
61353424454
7261604414
oct77527362
934358577
1016690930
119470163
12570b12a
1335c51b9
1423069b4
1516ea6da
hexfeaef2

16690930 has 32 divisors (see below), whose sum is σ = 31959360. Its totient is φ = 6258240.

The previous prime is 16690913. The next prime is 16690963. The reversal of 16690930 is 3909661.

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 15 ways as a sum of consecutive naturals, for example, 19920 + ... + 20740.

It is an arithmetic number, because the mean of its divisors is an integer number (998730).

Almost surely, 216690930 is an apocalyptic number.

16690930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16690930 is a deficient number, since it is larger than the sum of its proper divisors (15268430).

16690930 is a wasteful number, since it uses less digits than its factorization.

16690930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 16690930 is about 4085.4534632033. The cubic root of 16690930 is about 255.5603721699.

The spelling of 16690930 in words is "sixteen million, six hundred ninety thousand, nine hundred thirty".

Divisors: 1 2 5 10 19 38 95 107 190 214 535 821 1070 1642 2033 4066 4105 8210 10165 15599 20330 31198 77995 87847 155990 175694 439235 878470 1669093 3338186 8345465 16690930