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3031012120 = 235281269663
BaseRepresentation
bin1011010010101001…
…1001001100011000
321211020101100222011
42310222121030120
522201414341440
61220433035304
7135053115013
oct26452311430
97736340864
103031012120
111315a222a4
127070b5b34
13393c520c6
1420a79a37a
1512b16c9ea
hexb4a99318

3031012120 has 32 divisors (see below), whose sum is σ = 6844072320. Its totient is φ = 1208085760.

The previous prime is 3031012057. The next prime is 3031012123. The reversal of 3031012120 is 212101303.

It is a self number, because there is not a number n which added to its sum of digits gives 3031012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031012123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123592 + ... + 146071.

It is an arithmetic number, because the mean of its divisors is an integer number (213877260).

Almost surely, 23031012120 is an apocalyptic number.

It is an amenable number.

3031012120 is an abundant number, since it is smaller than the sum of its proper divisors (3813060200).

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

3031012120 is a wasteful number, since it uses less digits than its factorization.

3031012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269955 (or 269951 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3031012120 is about 55054.6285066024. The cubic root of 3031012120 is about 1447.2022342137.

Adding to 3031012120 its reverse (212101303), we get a palindrome (3243113423).

The spelling of 3031012120 in words is "three billion, thirty-one million, twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 281 562 1124 1405 2248 2810 5620 11240 269663 539326 1078652 1348315 2157304 2696630 5393260 10786520 75775303 151550606 303101212 378876515 606202424 757753030 1515506060 3031012120