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13293730 = 2519313761
BaseRepresentation
bin110010101101…
…100010100010
3221000101120101
4302231202202
511400344410
61152533014
7220665142
oct62554242
927011511
1013293730
11755a85a
12455116a
1329a5b18
141aa0922
151278d3a
hexcad8a2

13293730 has 64 divisors (see below), whose sum is σ = 27141120. Its totient is φ = 4665600.

The previous prime is 13293719. The next prime is 13293733. The reversal of 13293730 is 3739231.

It is not an unprimeable number, because it can be changed into a prime (13293733) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 217900 + ... + 217960.

It is an arithmetic number, because the mean of its divisors is an integer number (424080).

Almost surely, 213293730 is an apocalyptic number.

13293730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13293730 is an abundant number, since it is smaller than the sum of its proper divisors (13847390).

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

13293730 is a wasteful number, since it uses less digits than its factorization.

13293730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 13293730 is about 3646.0567741054. The cubic root of 13293730 is about 236.8912127499.

The spelling of 13293730 in words is "thirteen million, two hundred ninety-three thousand, seven hundred thirty".

Divisors: 1 2 5 10 19 31 37 38 61 62 74 95 122 155 185 190 305 310 370 589 610 703 1147 1159 1178 1406 1891 2257 2294 2318 2945 3515 3782 4514 5735 5795 5890 7030 9455 11285 11470 11590 18910 21793 22570 35929 42883 43586 69967 71858 85766 108965 139934 179645 214415 217930 349835 359290 428830 699670 1329373 2658746 6646865 13293730