Search a number
-
+
13120221200 = 2452231426111
BaseRepresentation
bin11000011100000011…
…01011000000010000
31020212101000021221112
430032001223000100
5203332234034300
610005523512452
7643063016522
oct141601530020
936771007845
1013120221200
115623028419
122661b28728
1313112754c8
148c6701a12
1551bc9ce35
hex30e06b010

13120221200 has 60 divisors (see below), whose sum is σ = 32891847168. Its totient is φ = 5019907200.

The previous prime is 13120221187. The next prime is 13120221211. The reversal of 13120221200 is 212202131.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 703856 + ... + 722255.

Almost surely, 213120221200 is an apocalyptic number.

13120221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120221200 is an abundant number, since it is smaller than the sum of its proper divisors (19771625968).

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

13120221200 is a wasteful number, since it uses less digits than its factorization.

13120221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426152 (or 1426141 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13120221200 its reverse (212202131), we get a palindrome (13332423331).

The spelling of 13120221200 in words is "thirteen billion, one hundred twenty million, two hundred twenty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 23 25 40 46 50 80 92 100 115 184 200 230 368 400 460 575 920 1150 1840 2300 4600 9200 1426111 2852222 5704444 7130555 11408888 14261110 22817776 28522220 32800553 35652775 57044440 65601106 71305550 114088880 131202212 142611100 164002765 262404424 285222200 328005530 524808848 570444400 656011060 820013825 1312022120 1640027650 2624044240 3280055300 6560110600 13120221200