Search a number
-
+
131201100201 = 3298338474723
BaseRepresentation
bin111101000110000110…
…0011110100110101001
3110112122122000110100110
41322030030132212221
54122144440201301
6140134542524533
712323166644133
oct1721414364651
9415578013313
10131201100201
1150707667526
1221516b96749
13c4ab992a02
1464c8c04053
15362d51a0d6
hex1e8c31e9a9

131201100201 has 32 divisors (see below), whose sum is σ = 183233756160. Its totient is φ = 83394448704.

The previous prime is 131201100193. The next prime is 131201100229. The reversal of 131201100201 is 102001102131.

It is not a de Polignac number, because 131201100201 - 23 = 131201100193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131201200201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27776826 + ... + 27781548.

It is an arithmetic number, because the mean of its divisors is an integer number (5726054880).

Almost surely, 2131201100201 is an apocalyptic number.

It is an amenable number.

131201100201 is a deficient number, since it is larger than the sum of its proper divisors (52032655959).

131201100201 is a wasteful number, since it uses less digits than its factorization.

131201100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8685.

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

Adding to 131201100201 its reverse (102001102131), we get a palindrome (233202202332).

The spelling of 131201100201 in words is "one hundred thirty-one billion, two hundred one million, one hundred thousand, two hundred one".

Divisors: 1 3 29 83 87 249 2407 3847 4723 7221 11541 14169 111563 136967 319301 334689 392009 410901 957903 1176027 9259729 11368261 18169381 27779187 34104783 54508143 526912049 1508058623 1580736147 4524175869 43733700067 131201100201