Search a number
-
+
131201513044 = 22730715263089
BaseRepresentation
bin111101000110000111…
…0000011011001010100
3110112122122210102122221
41322030032003121110
54122200041404134
6140134555432124
712323203313560
oct1721416033124
9415578712587
10131201513044
1150707919718
1221517155644
13c4abaa88b4
1464c8cb06a0
15362d59c5b4
hex1e8c383654

131201513044 has 24 divisors (see below), whose sum is σ = 263257776320. Its totient is φ = 56046059136.

The previous prime is 131201513041. The next prime is 131201513111. The reversal of 131201513044 is 440315102131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201513041) 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 7 ways as a sum of consecutive naturals, for example, 7622949 + ... + 7640140.

Almost surely, 2131201513044 is an apocalyptic number.

131201513044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131201513044 is an abundant number, since it is smaller than the sum of its proper divisors (132056263276).

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

131201513044 is a wasteful number, since it uses less digits than its factorization.

131201513044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15263407 (or 15263405 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 131201513044 its reverse (440315102131), we get a palindrome (571516615175).

The spelling of 131201513044 in words is "one hundred thirty-one billion, two hundred one million, five hundred thirteen thousand, forty-four".

Divisors: 1 2 4 7 14 28 307 614 1228 2149 4298 8596 15263089 30526178 61052356 106841623 213683246 427366492 4685768323 9371536646 18743073292 32800378261 65600756522 131201513044