Search a number
-
+
1373112361 = 12131131997
BaseRepresentation
bin101000111011000…
…0000100000101001
310112200202100001101
41101312000200221
510303004043421
6344130321401
746012156015
oct12166004051
93480670041
101373112361
116450a4705
12323a29261
1318b62632a
14d0513545
1580833191
hex51d80829

1373112361 has 4 divisors (see below), whose sum is σ = 1374245572. Its totient is φ = 1371979152.

The previous prime is 1373112353. The next prime is 1373112371. The reversal of 1373112361 is 1632113731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1632113731 = 4993270769.

It can be written as a sum of positive squares in 2 ways, for example, as 431849961 + 941262400 = 20781^2 + 30680^2 .

It is a cyclic number.

It is not a de Polignac number, because 1373112361 - 23 = 1373112353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1373112341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564786 + ... + 567211.

It is an arithmetic number, because the mean of its divisors is an integer number (343561393).

Almost surely, 21373112361 is an apocalyptic number.

It is an amenable number.

1373112361 is a deficient number, since it is larger than the sum of its proper divisors (1133211).

1373112361 is a wasteful number, since it uses less digits than its factorization.

1373112361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133210.

The product of its digits is 2268, while the sum is 28.

The square root of 1373112361 is about 37055.5307747710. The cubic root of 1373112361 is about 1111.4809550910.

The spelling of 1373112361 in words is "one billion, three hundred seventy-three million, one hundred twelve thousand, three hundred sixty-one".

Divisors: 1 1213 1131997 1373112361