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3030231312 = 243221043273
BaseRepresentation
bin1011010010011101…
…1010100100010000
321211011220200220100
42310213122210100
522201214400222
61220404212400
7135043353423
oct26447324420
97734820810
103030231312
1113155396a9
1270699a100
13393a3a8a4
1420a6359ba
1512b0664ac
hexb49da910

3030231312 has 30 divisors (see below), whose sum is σ = 8480439422. Its totient is φ = 1010077056.

The previous prime is 3030231289. The next prime is 3030231319. The reversal of 3030231312 is 2131320303.

It can be written as a sum of positive squares in only one way, i.e., 3029841936 + 389376 = 55044^2 + 624^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3030231319) 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, 10521493 + ... + 10521780.

Almost surely, 23030231312 is an apocalyptic number.

It is an amenable number.

3030231312 is an abundant number, since it is smaller than the sum of its proper divisors (5450208110).

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

3030231312 is a wasteful number, since it uses less digits than its factorization.

3030231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21043287 (or 21043278 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 3030231312 is about 55047.5368386270. The cubic root of 3030231312 is about 1447.0779540413.

Adding to 3030231312 its reverse (2131320303), we get a palindrome (5161551615).

The spelling of 3030231312 in words is "three billion, thirty million, two hundred thirty-one thousand, three hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 48 72 144 21043273 42086546 63129819 84173092 126259638 168346184 189389457 252519276 336692368 378778914 505038552 757557828 1010077104 1515115656 3030231312