Search a number
-
+
311325401 = 2364720921
BaseRepresentation
bin10010100011100…
…111001011011001
3210200210222011102
4102203213023121
51114144403101
650520441145
710500136142
oct2243471331
9720728142
10311325401
1114a80a422
12883191b5
134c664a1a
142d4c0ac9
151c4e986b
hex128e72d9

311325401 has 8 divisors (see below), whose sum is σ = 325378944. Its totient is φ = 297315040.

The previous prime is 311325379. The next prime is 311325407. The reversal of 311325401 is 104523113.

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

It is a cyclic number.

It is not a de Polignac number, because 311325401 - 26 = 311325337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311325407) 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, 4421 + ... + 25341.

It is an arithmetic number, because the mean of its divisors is an integer number (40672368).

Almost surely, 2311325401 is an apocalyptic number.

It is an amenable number.

311325401 is a deficient number, since it is larger than the sum of its proper divisors (14053543).

311325401 is a wasteful number, since it uses less digits than its factorization.

311325401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21591.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 311325401 is about 17644.4155754732. The cubic root of 311325401 is about 677.7531094061.

Adding to 311325401 its reverse (104523113), we get a palindrome (415848514).

The spelling of 311325401 in words is "three hundred eleven million, three hundred twenty-five thousand, four hundred one".

Divisors: 1 23 647 14881 20921 481183 13535887 311325401