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10211930 = 251971757
BaseRepresentation
bin100110111101…
…001001011010
3201012211010122
4212331021122
510103240210
61002513242
7152541251
oct46751132
921184118
1010211930
115845413
123505822
132167181
1414db798
15d6ab55
hex9bd25a

10211930 has 32 divisors (see below), whose sum is σ = 19647360. Its totient is φ = 3810240.

The previous prime is 10211921. The next prime is 10211947. The reversal of 10211930 is 3911201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10211899 and 10211908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13112 + ... + 13868.

It is an arithmetic number, because the mean of its divisors is an integer number (613980).

Almost surely, 210211930 is an apocalyptic number.

10211930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10211930 is a deficient number, since it is larger than the sum of its proper divisors (9435430).

10211930 is a wasteful number, since it uses less digits than its factorization.

10211930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 10211930 is about 3195.6110526783. The cubic root of 10211930 is about 216.9548066460.

The spelling of 10211930 in words is "ten million, two hundred eleven thousand, nine hundred thirty".

Divisors: 1 2 5 10 19 38 71 95 142 190 355 710 757 1349 1514 2698 3785 6745 7570 13490 14383 28766 53747 71915 107494 143830 268735 537470 1021193 2042386 5105965 10211930