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313210421140 = 225171641756113
BaseRepresentation
bin1001000111011001100…
…10111011111110010100
31002221110011122221202011
410203230302323332110
520112423331434030
6355515322154004
731425434436601
oct4435462737624
91087404587664
10313210421140
11110917132221
1250851652904
13236c6996056
14112338036a8
158232327b2a
hex48eccbbf94

313210421140 has 48 divisors (see below), whose sum is σ = 696487416912. Its totient is φ = 117905227776.

The previous prime is 313210421137. The next prime is 313210421143. The reversal of 313210421140 is 41124012313.

It is an interprime number because it is at equal distance from previous prime (313210421137) and next prime (313210421143).

It can be written as a sum of positive squares in 8 ways, for example, as 57613440784 + 255596980356 = 240028^2 + 505566^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313210421143) 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, 5553724 + ... + 5609836.

It is an arithmetic number, because the mean of its divisors is an integer number (14510154519).

Almost surely, 2313210421140 is an apocalyptic number.

It is an amenable number.

313210421140 is an abundant number, since it is smaller than the sum of its proper divisors (383276995772).

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

313210421140 is a wasteful number, since it uses less digits than its factorization.

313210421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72556 (or 72554 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 313210421140 its reverse (41124012313), we get a palindrome (354334433453).

The spelling of 313210421140 in words is "three hundred thirteen billion, two hundred ten million, four hundred twenty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 16417 32834 56113 65668 82085 112226 164170 224452 279089 280565 328340 558178 561130 953921 1116356 1122260 1395445 1907842 2790890 3815684 4769605 5581780 9539210 19078420 921207121 1842414242 3684828484 4606035605 9212071210 15660521057 18424142420 31321042114 62642084228 78302605285 156605210570 313210421140