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30131101023102 = 232101109367414313
BaseRepresentation
bin1101101100111011100011…
…00100101011101101111110
310221200111122020101202212100
412312131301210223231332
512422131443330214402
6144030011533045530
76226620525610362
oct666356144535576
9127614566352770
1030131101023102
11966758a014132
1234677389268a6
1313a7473462331
147624d2b7d2a2
15373ba462671c
hex1b677192bb7e

30131101023102 has 96 divisors (see below), whose sum is σ = 66716751404160. Its totient is φ = 9826154841600.

The previous prime is 30131101023091. The next prime is 30131101023139. The reversal of 30131101023102 is 20132010113103.

30131101023102 is a `hidden beast` number, since 30 + 1 + 311 + 0 + 10 + 2 + 310 + 2 = 666.

It is a super-2 number, since 2×301311010231022 (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72518298 + ... + 72932610.

It is an arithmetic number, because the mean of its divisors is an integer number (694966160460).

Almost surely, 230131101023102 is an apocalyptic number.

30131101023102 is an abundant number, since it is smaller than the sum of its proper divisors (36585650381058).

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

30131101023102 is a wasteful number, since it uses less digits than its factorization.

30131101023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414898 (or 414895 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 30131101023102 its reverse (20132010113103), we get a palindrome (50263111136205).

Subtracting from 30131101023102 its reverse (20132010113103), we obtain a palindrome (9999090909999).

The spelling of 30131101023102 in words is "thirty trillion, one hundred thirty-one billion, one hundred one million, twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 9 18 101 109 202 218 303 327 367 606 654 734 909 981 1101 1818 1962 2202 3303 6606 11009 22018 33027 37067 40003 66054 74134 80006 99081 111201 120009 198162 222402 240018 333603 360027 414313 667206 720054 828626 1242939 2485878 3728817 4040303 7457634 8080606 12120909 24241818 36362727 41845613 45160117 72725454 83691226 90320234 125536839 135480351 152052871 251073678 270960702 304105742 376610517 406441053 456158613 753221034 812882106 912317226 1368475839 2736951678 4561171817 9122343634 13683515451 15357339971 16573762939 27367030902 30714679942 33147525878 41050546353 46072019913 49721288817 82101092706 92144039826 99442577634 138216059739 149163866451 276432119478 298327732902 1673950056839 3347900113678 5021850170517 10043700341034 15065550511551 30131101023102