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201232131130 = 25181111177973
BaseRepresentation
bin1011101101101001011…
…1101010010000111010
3201020102012202102122201
42323122113222100322
511244110411144010
6232240022540414
720352501615022
oct2733227522072
9636365672581
10201232131130
1178384323598
123300029770a
1315c8c683654
149a4d9b6a82
15537b70a23a
hex2eda5ea43a

201232131130 has 16 divisors (see below), whose sum is σ = 364219042824. Its totient is φ = 80048139840.

The previous prime is 201232131091. The next prime is 201232131157. The reversal of 201232131130 is 31131232102.

It can be written as a sum of positive squares in 4 ways, for example, as 47057323329 + 154174807801 = 216927^2 + 392651^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201232131098 and 201232131107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55587177 + ... + 55590796.

Almost surely, 2201232131130 is an apocalyptic number.

201232131130 is a deficient number, since it is larger than the sum of its proper divisors (162986911694).

201232131130 is a wasteful number, since it uses less digits than its factorization.

201232131130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111178161.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201232131130 its reverse (31131232102), we get a palindrome (232363363232).

The spelling of 201232131130 in words is "two hundred one billion, two hundred thirty-two million, one hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 181 362 905 1810 111177973 222355946 555889865 1111779730 20123213113 40246426226 100616065565 201232131130