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13100031210042 = 2327449231555683
BaseRepresentation
bin1011111010100001011010…
…1101001111001000111010
31201101100110200212111122200
42332220112231033020322
53204112330442210132
643510023220331030
72521305662015310
oct276502655171072
951340420774580
1013100031210042
1141a0768112417
121576a59b43a76
13740434aa482a
1433408b28c0b0
1517ab664d8d7c
hexbea16b4f23a

13100031210042 has 48 divisors (see below), whose sum is σ = 32510418033600. Its totient is φ = 3734530039296.

The previous prime is 13100031210023. The next prime is 13100031210067. The reversal of 13100031210042 is 24001213000131.

13100031210042 is a `hidden beast` number, since 1 + 310 + 0 + 0 + 312 + 1 + 0 + 0 + 42 = 666.

It is a super-2 number, since 2×131000312100422 (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 13100031209997 and 13100031210024.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115721268 + ... + 115834415.

It is an arithmetic number, because the mean of its divisors is an integer number (677300375700).

Almost surely, 213100031210042 is an apocalyptic number.

13100031210042 is an abundant number, since it is smaller than the sum of its proper divisors (19410386823558).

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

13100031210042 is a wasteful number, since it uses less digits than its factorization.

13100031210042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231556147 (or 231556144 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13100031210042 its reverse (24001213000131), we get a palindrome (37101244210173).

The spelling of 13100031210042 in words is "thirteen trillion, one hundred billion, thirty-one million, two hundred ten thousand, forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 449 898 1347 2694 3143 4041 6286 8082 9429 18858 28287 56574 231555683 463111366 694667049 1389334098 1620889781 2084001147 3241779562 4168002294 4862669343 9725338686 14588008029 29176016058 103968501667 207937003334 311905505001 623811010002 727779511669 935716515003 1455559023338 1871433030006 2183338535007 4366677070014 6550015605021 13100031210042