Search a number
-
+
1316818941 = 3974525151
BaseRepresentation
bin100111001111101…
…0000111111111101
310101202211022222220
41032133100333331
510144101201231
6334355555553
744426530164
oct11637207775
93352738886
101316818941
11616345619
12308bbbbb9
1317ca76509
14c6c5c3db
157a913896
hex4e7d0ffd

1316818941 has 8 divisors (see below), whose sum is σ = 1773859584. Its totient is φ = 868828800.

The previous prime is 1316818907. The next prime is 1316818949. The reversal of 1316818941 is 1498186131.

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

It is not a de Polignac number, because 1316818941 - 29 = 1316818429 is a prime.

It is a super-2 number, since 2×13168189412 = 3468024246752722962, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1316818893 and 1316818902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316818949) 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, 2262285 + ... + 2262866.

It is an arithmetic number, because the mean of its divisors is an integer number (221732448).

Almost surely, 21316818941 is an apocalyptic number.

It is an amenable number.

1316818941 is a deficient number, since it is larger than the sum of its proper divisors (457040643).

1316818941 is an equidigital number, since it uses as much as digits as its factorization.

1316818941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525251.

The product of its digits is 41472, while the sum is 42.

The square root of 1316818941 is about 36287.9999586640. Note that the first 4 decimals coincide. The cubic root of 1316818941 is about 1096.0794151545.

The spelling of 1316818941 in words is "one billion, three hundred sixteen million, eight hundred eighteen thousand, nine hundred forty-one".

Divisors: 1 3 97 291 4525151 13575453 438939647 1316818941