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91830006 = 23236713901
BaseRepresentation
bin1010111100100…
…11011011110110
320101210110002100
411132103123312
5142002030011
613040122530
72163353652
oct536233366
9211713070
1091830006
1147921274
1226906446
1316042ba8
14c2a5a62
1580ddd56
hex57936f6

91830006 has 24 divisors (see below), whose sum is σ = 199521504. Its totient is φ = 30524400.

The previous prime is 91830001. The next prime is 91830023. The reversal of 91830006 is 60003819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91830001) 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 11 ways as a sum of consecutive naturals, for example, 345 + ... + 13556.

It is an arithmetic number, because the mean of its divisors is an integer number (8313396).

Almost surely, 291830006 is an apocalyptic number.

91830006 is an abundant number, since it is smaller than the sum of its proper divisors (107691498).

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

91830006 is a wasteful number, since it uses less digits than its factorization.

91830006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14276 (or 14273 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 91830006 is about 9582.7973995071. The cubic root of 91830006 is about 451.1575236817.

The spelling of 91830006 in words is "ninety-one million, eight hundred thirty thousand, six".

Divisors: 1 2 3 6 9 18 367 734 1101 2202 3303 6606 13901 27802 41703 83406 125109 250218 5101667 10203334 15305001 30610002 45915003 91830006