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13005850 = 252111317107
BaseRepresentation
bin110001100111…
…010000011010
3220110202200011
4301213100122
511312141400
61142432134
7215355634
oct61472032
926422604
1013005850
117383540
12443264a
132904a90
141a27a54
15121d8ba
hexc6741a

13005850 has 96 divisors (see below), whose sum is σ = 30373056. Its totient is φ = 4070400.

The previous prime is 13005767. The next prime is 13005859. The reversal of 13005850 is 5850031.

It is a Harshad number since it is a multiple of its sum of digits (22).

13005850 is a modest number, since divided by 5850 gives 1300 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13005859) 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 47 ways as a sum of consecutive naturals, for example, 121497 + ... + 121603.

It is an arithmetic number, because the mean of its divisors is an integer number (316386).

Almost surely, 213005850 is an apocalyptic number.

13005850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13005850 is an abundant number, since it is smaller than the sum of its proper divisors (17367206).

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

13005850 is a wasteful number, since it uses less digits than its factorization.

13005850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 13005850 is about 3606.3624332560. The cubic root of 13005850 is about 235.1687335032.

Adding to 13005850 its reverse (5850031), we get a palindrome (18855881).

The spelling of 13005850 in words is "thirteen million, five thousand, eight hundred fifty".

Divisors: 1 2 5 10 11 13 17 22 25 26 34 50 55 65 85 107 110 130 143 170 187 214 221 275 286 325 374 425 442 535 550 650 715 850 935 1070 1105 1177 1391 1430 1819 1870 2210 2354 2431 2675 2782 3575 3638 4675 4862 5350 5525 5885 6955 7150 9095 9350 11050 11770 12155 13910 15301 18190 20009 23647 24310 29425 30602 34775 40018 45475 47294 58850 60775 69550 76505 90950 100045 118235 121550 153010 200090 236470 260117 382525 500225 520234 591175 765050 1000450 1182350 1300585 2601170 6502925 13005850