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310331121 = 3241429227
BaseRepresentation
bin10010011111110…
…100011011110001
3210121221110021020
4102133310123301
51113421043441
650443250053
710455525312
oct2237643361
9717843236
10310331121
1114a1a0401
1287b19929
134c3a72a9
142d302609
151c39ee66
hex127f46f1

310331121 has 8 divisors (see below), whose sum is σ = 415492704. Its totient is φ = 206028480.

The previous prime is 310331089. The next prime is 310331171. The reversal of 310331121 is 121133013.

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

It is not a de Polignac number, because 310331121 - 25 = 310331089 is a prime.

It is a super-2 number, since 2×3103311212 = 192610809322233282, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 310331121.

It is not an unprimeable number, because it can be changed into a prime (310331171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213891 + ... + 215336.

It is an arithmetic number, because the mean of its divisors is an integer number (51936588).

Almost surely, 2310331121 is an apocalyptic number.

It is an amenable number.

310331121 is a deficient number, since it is larger than the sum of its proper divisors (105161583).

310331121 is a wasteful number, since it uses less digits than its factorization.

310331121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429471.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 310331121 is about 17616.2175565585. The cubic root of 310331121 is about 677.0308265242.

Adding to 310331121 its reverse (121133013), we get a palindrome (431464134).

The spelling of 310331121 in words is "three hundred ten million, three hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 3 241 723 429227 1287681 103443707 310331121