Search a number
-
+
3331111121 = 131715072901
BaseRepresentation
bin1100011010001100…
…1011100011010001
322121011001222101222
43012203023203101
523310231023441
61310313134425
7145355656142
oct30643134321
98534058358
103331111121
11145a3640a8
1278b6ba415
13411185c90
14238597ac9
1514769ad4b
hexc68cb8d1

3331111121 has 8 divisors (see below), whose sum is σ = 3798371304. Its totient is φ = 2893996800.

The previous prime is 3331111093. The next prime is 3331111123. The reversal of 3331111121 is 1211111333.

It can be written as a sum of positive squares in 4 ways, for example, as 1291324225 + 2039786896 = 35935^2 + 45164^2 .

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 3331111121 - 226 = 3264002257 is a prime.

It is a super-2 number, since 2×33311111212 = 22192602600899753282, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 3331111121.

It is not an unprimeable number, because it can be changed into a prime (3331111123) 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, 7536230 + ... + 7536671.

It is an arithmetic number, because the mean of its divisors is an integer number (474796413).

Almost surely, 23331111121 is an apocalyptic number.

It is an amenable number.

3331111121 is a deficient number, since it is larger than the sum of its proper divisors (467260183).

3331111121 is a wasteful number, since it uses less digits than its factorization.

3331111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15072931.

The product of its digits is 54, while the sum is 17.

The square root of 3331111121 is about 57715.7787870873. The cubic root of 3331111121 is about 1493.4695539611.

Adding to 3331111121 its reverse (1211111333), we get a palindrome (4542222454).

The spelling of 3331111121 in words is "three billion, three hundred thirty-one million, one hundred eleven thousand, one hundred twenty-one".

Divisors: 1 13 17 221 15072901 195947713 256239317 3331111121