Search a number
-
+
131312301444 = 2234547740923
BaseRepresentation
bin111101001001011010…
…0101011010110000100
3110112221101021001210000
41322102310223112010
54122411422121234
6140153554201300
712326020101042
oct1722264532604
9415841231700
10131312301444
1150764409685
1221548283230
13c4c8a28a6c
1464d98ad392
153638183899
hex1e92d2b584

131312301444 has 60 divisors (see below), whose sum is σ = 343904320144. Its totient is φ = 43690688496.

The previous prime is 131312301409. The next prime is 131312301451. The reversal of 131312301444 is 444103213131.

131312301444 is a `hidden beast` number, since 1 + 3 + 1 + 312 + 301 + 4 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 193234 + ... + 547689.

Almost surely, 2131312301444 is an apocalyptic number.

It is an amenable number.

131312301444 is an abundant number, since it is smaller than the sum of its proper divisors (212592018700).

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

131312301444 is a wasteful number, since it uses less digits than its factorization.

131312301444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741486 (or 741475 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131312301444 its reverse (444103213131), we get a palindrome (575415514575).

The spelling of 131312301444 in words is "one hundred thirty-one billion, three hundred twelve million, three hundred one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 547 1094 1641 2188 3282 4923 6564 9846 14769 19692 29538 44307 59076 88614 177228 740923 1481846 2222769 2963692 4445538 6668307 8891076 13336614 20004921 26673228 40009842 60014763 80019684 120029526 240059052 405284881 810569762 1215854643 1621139524 2431709286 3647563929 4863418572 7295127858 10942691787 14590255716 21885383574 32828075361 43770767148 65656150722 131312301444