Search a number
-
+
3121141331 = 711231762361
BaseRepresentation
bin1011101000001000…
…1101011001010011
322001111222102000002
42322002031121103
522343003010311
61233412520215
7140226156260
oct27202153123
98044872002
103121141331
111361891750
1273132006b
133a981aab9
1421873c267
1513402293b
hexba08d653

3121141331 has 16 divisors (see below), whose sum is σ = 4060482048. Its totient is φ = 2326315200.

The previous prime is 3121141321. The next prime is 3121141337. The reversal of 3121141331 is 1331411213.

It is not a de Polignac number, because 3121141331 - 214 = 3121124947 is a prime.

It is a super-2 number, since 2×31211413312 = 19483046416152903122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121141337) 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, 879410 + ... + 882951.

It is an arithmetic number, because the mean of its divisors is an integer number (253780128).

Almost surely, 23121141331 is an apocalyptic number.

3121141331 is a deficient number, since it is larger than the sum of its proper divisors (939340717).

3121141331 is a wasteful number, since it uses less digits than its factorization.

3121141331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762402.

The product of its digits is 216, while the sum is 20.

The square root of 3121141331 is about 55867.1757922306. The cubic root of 3121141331 is about 1461.4068710424.

Adding to 3121141331 its reverse (1331411213), we get a palindrome (4452552544).

The spelling of 3121141331 in words is "three billion, one hundred twenty-one million, one hundred forty-one thousand, three hundred thirty-one".

Divisors: 1 7 11 23 77 161 253 1771 1762361 12336527 19385971 40534303 135701797 283740121 445877333 3121141331