Search a number
-
+
331030440021401 = 617374338746917
BaseRepresentation
bin100101101000100100000011…
…1110010011000110110011001
31121102002012102112100002002022
41023101020013302120312121
5321342100320121141101
63132013141301144225
7126504105616633361
oct11321100762306631
91542065375302068
10331030440021401
11965272484a004a
1231163b006bb075
13112930623b9783
145ba5d5cc959a1
152840cdc444a1b
hex12d1207c98d99

331030440021401 has 8 divisors (see below), whose sum is σ = 341066170859784. Its totient is φ = 321143386677120.

The previous prime is 331030440021377. The next prime is 331030440021409. The reversal of 331030440021401 is 104120044030133.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15588685959001 + 315441754062400 = 3948251^2 + 17760680^2 .

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 331030440021401 - 210 = 331030440020377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331030440021409) 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, 37169369006 + ... + 37169377911.

It is an arithmetic number, because the mean of its divisors is an integer number (42633271357473).

Almost surely, 2331030440021401 is an apocalyptic number.

It is an amenable number.

331030440021401 is a deficient number, since it is larger than the sum of its proper divisors (10035730838383).

331030440021401 is an equidigital number, since it uses as much as digits as its factorization.

331030440021401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74338747051.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 331030440021401 its reverse (104120044030133), we get a palindrome (435150484051534).

The spelling of 331030440021401 in words is "three hundred thirty-one trillion, thirty billion, four hundred forty million, twenty-one thousand, four hundred one".

Divisors: 1 61 73 4453 74338746917 4534663561937 5426728524941 331030440021401