Search a number
-
+
3131121301 = 711101402613
BaseRepresentation
bin1011101010100001…
…0001111010010101
322002012202102221121
42322220101322111
522403031340201
61234410443541
7140410043350
oct27250217225
98065672847
103131121301
111367488860
127347335b1
133ab9034c9
14219bb9297
15134d449a1
hexbaa11e95

3131121301 has 16 divisors (see below), whose sum is σ = 3942396288. Its totient is φ = 2415672000.

The previous prime is 3131121281. The next prime is 3131121317. The reversal of 3131121301 is 1031211313.

3131121301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3131121301 - 211 = 3131119253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131121361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193530 + ... + 209083.

It is an arithmetic number, because the mean of its divisors is an integer number (246399768).

Almost surely, 23131121301 is an apocalyptic number.

It is an amenable number.

3131121301 is a deficient number, since it is larger than the sum of its proper divisors (811274987).

3131121301 is a wasteful number, since it uses less digits than its factorization.

3131121301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402732.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 3131121301 is about 55956.4232327264. The cubic root of 3131121301 is about 1462.9628487646.

Adding to 3131121301 its reverse (1031211313), we get a palindrome (4162332614).

It can be divided in two parts, 313112 and 1301, that added together give a palindrome (314413).

The spelling of 3131121301 in words is "three billion, one hundred thirty-one million, one hundred twenty-one thousand, three hundred one".

Divisors: 1 7 11 77 101 707 1111 7777 402613 2818291 4428743 31001201 40663913 284647391 447303043 3131121301