Search a number
-
+
131002201200 = 243521372711551
BaseRepresentation
bin111101000000001010…
…1101111010001110000
3110112010202202100012210
41322000111233101300
54121243030414300
6140103115452120
712315233223513
oct1720025572160
9415122670183
10131002201200
1150615366792
1221480457040
13c4797028b0
1464aa62ad7a
15361ad2c050
hex1e8056f470

131002201200 has 240 divisors, whose sum is σ = 452584810496. Its totient is φ = 32199552000.

The previous prime is 131002201163. The next prime is 131002201201. The reversal of 131002201200 is 2102200131.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131002201201) 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 47 ways as a sum of consecutive naturals, for example, 11335425 + ... + 11346975.

Almost surely, 2131002201200 is an apocalyptic number.

131002201200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131002201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226292405248).

131002201200 is an abundant number, since it is smaller than the sum of its proper divisors (321582609296).

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

131002201200 is a wasteful number, since it uses less digits than its factorization.

131002201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12312 (or 12301 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 131002201200 its reverse (2102200131), we get a palindrome (133104401331).

The spelling of 131002201200 in words is "one hundred thirty-one billion, two million, two hundred one thousand, two hundred".