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331331042130 = 2351141128319087
BaseRepresentation
bin1001101001001001101…
…11100111101101010010
31011200020000210212122220
410310210313213231102
520412031221322010
6412113354041510
732636456250444
oct4644467475522
91150200725586
10331331042130
1111857580aa50
125426a119296
1325323baa0aa
141207226c494
1589430aa970
hex4d24de7b52

331331042130 has 128 divisors (see below), whose sum is σ = 889382301696. Its totient is φ = 78298406400.

The previous prime is 331331042113. The next prime is 331331042131. The reversal of 331331042130 is 31240133133.

It is a happy number.

It is a super-3 number, since 3×3313310421303 (a number of 36 digits) contains 333 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 331331042130.

It is not an unprimeable number, because it can be changed into a prime (331331042131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17349447 + ... + 17368533.

It is an arithmetic number, because the mean of its divisors is an integer number (6948299232).

Almost surely, 2331331042130 is an apocalyptic number.

331331042130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 331331042130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444691150848).

331331042130 is an abundant number, since it is smaller than the sum of its proper divisors (558051259566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331331042130 is a wasteful number, since it uses less digits than its factorization.

331331042130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20432.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 331331042130 its reverse (31240133133), we get a palindrome (362571175263).

The spelling of 331331042130 in words is "three hundred thirty-one billion, three hundred thirty-one million, forty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 41 55 66 82 110 123 165 205 246 330 410 451 615 902 1230 1283 1353 2255 2566 2706 3849 4510 6415 6765 7698 12830 13530 14113 19087 19245 28226 38174 38490 42339 52603 57261 70565 84678 95435 105206 114522 141130 157809 190870 209957 211695 263015 286305 315618 419914 423390 526030 572610 578633 629871 782567 789045 1049785 1157266 1259742 1565134 1578090 1735899 2099570 2347701 2893165 3149355 3471798 3912835 4695402 5786330 6298710 7825670 8608237 8679495 11738505 17216474 17358990 23477010 24488621 25824711 43041185 48977242 51649422 73465863 86082370 122443105 129123555 146931726 244886210 258247110 269374831 367329315 538749662 734658630 808124493 1004033461 1346874155 1616248986 2008066922 2693748310 3012100383 4040622465 5020167305 6024200766 8081244930 10040334610 11044368071 15060501915 22088736142 30121003830 33133104213 55221840355 66266208426 110443680710 165665521065 331331042130