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313130320054220 = 22516240819640231
BaseRepresentation
bin100011100110010100101010…
…1011111101100011111001100
31112001200222002101121210121102
41013030221111133230133030
5312020311343413213340
63025550025543522232
7122645630144441504
oct10714512537543714
91461628071553542
10313130320054220
119085590641a869
122b152906759378
13105950a7364846
14574783463aa04
152630388eca215
hex11cca557ec7cc

313130320054220 has 24 divisors (see below), whose sum is σ = 657574145215008. Its totient is φ = 125252037907200.

The previous prime is 313130320054217. The next prime is 313130320054261. The reversal of 313130320054220 is 22450023031313.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27661505 + ... + 37301735.

It is an arithmetic number, because the mean of its divisors is an integer number (27398922717292).

Almost surely, 2313130320054220 is an apocalyptic number.

It is an amenable number.

313130320054220 is an abundant number, since it is smaller than the sum of its proper divisors (344443825160788).

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

313130320054220 is a wasteful number, since it uses less digits than its factorization.

313130320054220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11264321 (or 11264319 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 29.

Adding to 313130320054220 its reverse (22450023031313), we get a palindrome (335580343085533).

The spelling of 313130320054220 in words is "three hundred thirteen trillion, one hundred thirty billion, three hundred twenty million, fifty-four thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1624081 3248162 6496324 8120405 9640231 16240810 19280462 32481620 38560924 48201155 96402310 192804620 15656516002711 31313032005422 62626064010844 78282580013555 156565160027110 313130320054220