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1031310313 = 11909110313
BaseRepresentation
bin111101011110001…
…000101111101001
32122212120222210021
4331132020233221
54103003412223
6250200320441
734361664415
oct7536105751
92585528707
101031310313
1148a169780
12249473121
131358806b7
149ad7bd45
156081865d
hex3d788be9

1031310313 has 8 divisors (see below), whose sum is σ = 1125298656. Its totient is φ = 937360800.

The previous prime is 1031310289. The next prime is 1031310341. The reversal of 1031310313 is 3130131301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1031310313 - 25 = 1031310281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031310113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94845 + ... + 105157.

It is an arithmetic number, because the mean of its divisors is an integer number (140662332).

Almost surely, 21031310313 is an apocalyptic number.

It is an amenable number.

1031310313 is a deficient number, since it is larger than the sum of its proper divisors (93988343).

1031310313 is a wasteful number, since it uses less digits than its factorization.

1031310313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19415.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 1031310313 is about 32114.0205050691. The cubic root of 1031310313 is about 1010.3297008774.

Adding to 1031310313 its reverse (3130131301), we get a palindrome (4161441614).

The spelling of 1031310313 in words is "one billion, thirty-one million, three hundred ten thousand, three hundred thirteen".

Divisors: 1 11 9091 10313 100001 113443 93755483 1031310313