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2331130122 = 232129507229
BaseRepresentation
bin1000101011110010…
…0011100100001010
320000110102200100200
42022330203210022
514233232130442
61023152113030
7111524164506
oct21274434412
96013380320
102331130122
11a96953622
12550835776
132b1c54649
14181853306
15d99c034c
hex8af2390a

2331130122 has 12 divisors (see below), whose sum is σ = 5050781970. Its totient is φ = 777043368.

The previous prime is 2331130103. The next prime is 2331130127. The reversal of 2331130122 is 2210311332.

It can be written as a sum of positive squares in only one way, i.e., 1622558961 + 708571161 = 40281^2 + 26619^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 129507229 = 2331130122 / (2 + 3 + 3 + 1 + 1 + 3 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 2331130095 and 2331130104.

It is not an unprimeable number, because it can be changed into a prime (2331130127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64753597 + ... + 64753632.

Almost surely, 22331130122 is an apocalyptic number.

2331130122 is an abundant number, since it is smaller than the sum of its proper divisors (2719651848).

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

2331130122 is a wasteful number, since it uses less digits than its factorization.

2331130122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129507237 (or 129507234 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2331130122 is about 48281.7783640992. The cubic root of 2331130122 is about 1325.9348090771.

Adding to 2331130122 its reverse (2210311332), we get a palindrome (4541441454).

The spelling of 2331130122 in words is "two billion, three hundred thirty-one million, one hundred thirty thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 129507229 259014458 388521687 777043374 1165565061 2331130122