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2201031131 = 132814611307
BaseRepresentation
bin1000001100110001…
…0001000111011011
312200101121222002112
42003030101013123
514001430444011
61002223422535
7105354312245
oct20314210733
95611558075
102201031131
11a2a4742a2
12515154a4b
13291002ab0
1416c469095
15cd37258b
hex833111db

2201031131 has 16 divisors (see below), whose sum is σ = 2385760608. Its totient is φ = 2018553600.

The previous prime is 2201031121. The next prime is 2201031139. The reversal of 2201031131 is 1311301022.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2201031131 is a prime.

It is a super-2 number, since 2×22010311312 = 9689076079262278322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201031139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683380 + ... + 1684686.

It is an arithmetic number, because the mean of its divisors is an integer number (149110038).

Almost surely, 22201031131 is an apocalyptic number.

2201031131 is a deficient number, since it is larger than the sum of its proper divisors (184729477).

2201031131 is a wasteful number, since it uses less digits than its factorization.

2201031131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2201031131 is about 46915.1482039650. The cubic root of 2201031131 is about 1300.7946090778.

Adding to 2201031131 its reverse (1311301022), we get a palindrome (3512332153).

The spelling of 2201031131 in words is "two billion, two hundred one million, thirty-one thousand, one hundred thirty-one".

Divisors: 1 13 281 461 1307 3653 5993 16991 129541 367267 602527 1684033 4774471 7832851 169310087 2201031131