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313215304020 = 223549910461433
BaseRepresentation
bin1001000111011010001…
…01100100000101010100
31002221110111212000210120
410203231011210011110
520112431104212040
6355520014551540
731425524104443
oct4435505440524
91087414760716
10313215304020
11110919967863
12508532085b0
13236c79b5728
1411234314d5a
15823298e7d0
hex48ed164154

313215304020 has 48 divisors (see below), whose sum is σ = 878760456000. Its totient is φ = 83356690176.

The previous prime is 313215303983. The next prime is 313215304021. The reversal of 313215304020 is 20403512313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313215304021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5200777 + ... + 5260656.

It is an arithmetic number, because the mean of its divisors is an integer number (18307509500).

Almost surely, 2313215304020 is an apocalyptic number.

313215304020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313215304020 is an abundant number, since it is smaller than the sum of its proper divisors (565545151980).

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

313215304020 is a wasteful number, since it uses less digits than its factorization.

313215304020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10461944 (or 10461942 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 313215304020 its reverse (20403512313), we get a palindrome (333618816333).

The spelling of 313215304020 in words is "three hundred thirteen billion, two hundred fifteen million, three hundred four thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 499 998 1497 1996 2495 2994 4990 5988 7485 9980 14970 29940 10461433 20922866 31384299 41845732 52307165 62768598 104614330 125537196 156921495 209228660 313842990 627685980 5220255067 10440510134 15660765201 20881020268 26101275335 31321530402 52202550670 62643060804 78303826005 104405101340 156607652010 313215304020