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1313001340 = 225759158959
BaseRepresentation
bin100111001000010…
…1100111101111100
310101111122101020021
41032100230331330
510142112020330
6334142101524
744352220150
oct11620547574
93344571207
101313001340
11614178382
1230787a8a4
1317c03a991
14c6547060
157a40c67a
hex4e42cf7c

1313001340 has 48 divisors (see below), whose sum is σ = 3204633600. Its totient is φ = 442539072.

The previous prime is 1313001241. The next prime is 1313001379. The reversal of 1313001340 is 431003131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71220 + ... + 87739.

It is an arithmetic number, because the mean of its divisors is an integer number (66763200).

Almost surely, 21313001340 is an apocalyptic number.

1313001340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313001340 is an abundant number, since it is smaller than the sum of its proper divisors (1891632260).

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

1313001340 is a wasteful number, since it uses less digits than its factorization.

1313001340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159034 (or 159032 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1313001340 is about 36235.3603542175. The cubic root of 1313001340 is about 1095.0191721864.

Adding to 1313001340 its reverse (431003131), we get a palindrome (1744004471).

The spelling of 1313001340 in words is "one billion, three hundred thirteen million, one thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 59 70 118 140 236 295 413 590 826 1180 1652 2065 4130 8260 158959 317918 635836 794795 1112713 1589590 2225426 3179180 4450852 5563565 9378581 11127130 18757162 22254260 37514324 46892905 65650067 93785810 131300134 187571620 262600268 328250335 656500670 1313001340