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3031303121 = 721159199479
BaseRepresentation
bin1011010010101110…
…0000001111010001
321211020221011010222
42310223200033101
522202003144441
61220443202425
7135055436300
oct26453401721
97736834128
103031303121
1113161009a0
12707216415
133940246b2
1420a834437
1512b1c8d4b
hexb4ae03d1

3031303121 has 48 divisors (see below), whose sum is σ = 3939840000. Its totient is φ = 2305527840.

The previous prime is 3031303069. The next prime is 3031303123. The reversal of 3031303121 is 1213031303.

It is not a de Polignac number, because 3031303121 - 214 = 3031286737 is a prime.

It is a super-2 number, since 2×30313031212 = 18377597222768681282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3031303121.

It is not an unprimeable number, because it can be changed into a prime (3031303123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6328160 + ... + 6328638.

It is an arithmetic number, because the mean of its divisors is an integer number (82080000).

Almost surely, 23031303121 is an apocalyptic number.

It is an amenable number.

3031303121 is a deficient number, since it is larger than the sum of its proper divisors (908536879).

3031303121 is a wasteful number, since it uses less digits than its factorization.

3031303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762 (or 755 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 3031303121 is about 55057.2712818207. The cubic root of 3031303121 is about 1447.2485469968.

Adding to 3031303121 its reverse (1213031303), we get a palindrome (4244334424).

It can be divided in two parts, 3031303 and 121, that multiplied together give a palindrome (366787663).

The spelling of 3031303121 in words is "three billion, thirty-one million, three hundred three thousand, one hundred twenty-one".

Divisors: 1 7 11 49 59 77 199 413 479 539 649 1393 2189 2891 3353 4543 5269 9751 11741 15323 23471 28261 31801 36883 82187 95321 107261 129151 197827 258181 310871 575309 667247 904057 1048531 1384789 2176097 4670729 5623939 6328399 7339717 15232679 39367573 51378019 61863329 275573011 433043303 3031303121