Search a number
-
+
131032210201 = 134699728429
BaseRepresentation
bin111101000001000100…
…0001101101100011001
3110112012212012221211021
41322002020031230121
54121323221211301
6140110111002441
712316046260354
oct1720210155431
9415185187737
10131032210201
11506302a2a12
122148a509421
13c4829ab9b9
1464b05dd29b
15361d7a88a1
hex1e8220db19

131032210201 has 4 divisors (see below), whose sum is σ = 131041952100. Its totient is φ = 131022468304.

The previous prime is 131032210193. The next prime is 131032210273. The reversal of 131032210201 is 102012230131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57061265625 + 73970944576 = 238875^2 + 271976^2 .

It is a cyclic number.

It is not a de Polignac number, because 131032210201 - 23 = 131032210193 is a prime.

It is a super-2 number, since 2×1310322102012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131032210501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4850746 + ... + 4877683.

It is an arithmetic number, because the mean of its divisors is an integer number (32760488025).

Almost surely, 2131032210201 is an apocalyptic number.

It is an amenable number.

131032210201 is a deficient number, since it is larger than the sum of its proper divisors (9741899).

131032210201 is an equidigital number, since it uses as much as digits as its factorization.

131032210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9741898.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131032210201 its reverse (102012230131), we get a palindrome (233044440332).

The spelling of 131032210201 in words is "one hundred thirty-one billion, thirty-two million, two hundred ten thousand, two hundred one".

Divisors: 1 13469 9728429 131032210201