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1310124493 = 10949119657
BaseRepresentation
bin100111000010110…
…1110100111001101
310101022020012221101
41032011232213031
510140342440433
6334000303101
744315605636
oct11605564715
93338205841
101310124493
11612592a17
12306911a91
1317b5713c2
14c5dd888d
157a04007d
hex4e16e9cd

1310124493 has 4 divisors (see below), whose sum is σ = 1310255100. Its totient is φ = 1309993888.

The previous prime is 1310124481. The next prime is 1310124521. The reversal of 1310124493 is 3944210131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 159693769 + 1150430724 = 12637^2 + 33918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1310124493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310124433) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 48880 + ... + 70777.

It is an arithmetic number, because the mean of its divisors is an integer number (327563775).

Almost surely, 21310124493 is an apocalyptic number.

It is an amenable number.

1310124493 is a deficient number, since it is larger than the sum of its proper divisors (130607).

1310124493 is a wasteful number, since it uses less digits than its factorization.

1310124493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130606.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1310124493 is about 36195.6419061743. The cubic root of 1310124493 is about 1094.2188414033.

The spelling of 1310124493 in words is "one billion, three hundred ten million, one hundred twenty-four thousand, four hundred ninety-three".

Divisors: 1 10949 119657 1310124493