Search a number
-
+
313203401 = 744743343
BaseRepresentation
bin10010101010110…
…001101011001001
3210211100101021222
4102222301223021
51120140002101
651025011425
710522120310
oct2252615311
9724311258
10313203401
11150882395
1288a83b75
134cb71774
142d84d277
151c76b01b
hex12ab1ac9

313203401 has 4 divisors (see below), whose sum is σ = 357946752. Its totient is φ = 268460052.

The previous prime is 313203389. The next prime is 313203437. The reversal of 313203401 is 104302313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104302313 = 881911827.

It is not a de Polignac number, because 313203401 - 210 = 313202377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313203401.

It is not an unprimeable number, because it can be changed into a prime (313203481) 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, 22371665 + ... + 22371678.

It is an arithmetic number, because the mean of its divisors is an integer number (89486688).

Almost surely, 2313203401 is an apocalyptic number.

It is an amenable number.

313203401 is a deficient number, since it is larger than the sum of its proper divisors (44743351).

313203401 is an equidigital number, since it uses as much as digits as its factorization.

313203401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44743350.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 313203401 is about 17697.5535314913. The cubic root of 313203401 is about 679.1131756953.

Adding to 313203401 its reverse (104302313), we get a palindrome (417505714).

The spelling of 313203401 in words is "three hundred thirteen million, two hundred three thousand, four hundred one".

Divisors: 1 7 44743343 313203401