Search a number
-
+
1312300001 = 3494937549
BaseRepresentation
bin100111000111000…
…0001101111100001
310101110022202011202
41032032001233201
510141422100001
6334115050545
744343236345
oct11616015741
93343282152
101312300001
11613839461
123075a0a55
1317bb5369c
14c6403625
157a31e96b
hex4e381be1

1312300001 has 4 divisors (see below), whose sum is σ = 1312372500. Its totient is φ = 1312227504.

The previous prime is 1312299991. The next prime is 1312300009. The reversal of 1312300001 is 1000032131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 187032976 + 1125267025 = 13676^2 + 33545^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312300001 - 226 = 1245191137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312300009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16175 + ... + 53723.

It is an arithmetic number, because the mean of its divisors is an integer number (328093125).

Almost surely, 21312300001 is an apocalyptic number.

It is an amenable number.

1312300001 is a deficient number, since it is larger than the sum of its proper divisors (72499).

1312300001 is an equidigital number, since it uses as much as digits as its factorization.

1312300001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72498.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1312300001 is about 36225.6815118777. The cubic root of 1312300001 is about 1094.8241694836.

Adding to 1312300001 its reverse (1000032131), we get a palindrome (2312332132).

The spelling of 1312300001 in words is "one billion, three hundred twelve million, three hundred thousand, one".

Divisors: 1 34949 37549 1312300001