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1300031313 = 3761906253
BaseRepresentation
bin100110101111100…
…1110011101010001
310100121020102200220
41031133032131101
510130302000223
6333000103253
744134040520
oct11537163521
93317212626
101300031313
11607919849
12303464b29
131794492c9
14c492c4b7
15791e96e3
hex4d7ce751

1300031313 has 8 divisors (see below), whose sum is σ = 1981000128. Its totient is φ = 742875024.

The previous prime is 1300031303. The next prime is 1300031363. The reversal of 1300031313 is 3131300031.

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

It is not a de Polignac number, because 1300031313 - 221 = 1297934161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1300031292 and 1300031301.

It is not an unprimeable number, because it can be changed into a prime (1300031303) 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, 30953106 + ... + 30953147.

It is an arithmetic number, because the mean of its divisors is an integer number (247625016).

Almost surely, 21300031313 is an apocalyptic number.

It is an amenable number.

1300031313 is a deficient number, since it is larger than the sum of its proper divisors (680968815).

1300031313 is an equidigital number, since it uses as much as digits as its factorization.

1300031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61906263.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 1300031313 is about 36055.9469852062. The cubic root of 1300031313 is about 1091.4016457562.

Adding to 1300031313 its reverse (3131300031), we get a palindrome (4431331344).

The spelling of 1300031313 in words is "one billion, three hundred million, thirty-one thousand, three hundred thirteen".

Divisors: 1 3 7 21 61906253 185718759 433343771 1300031313