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13103112042 = 233892726407
BaseRepresentation
bin11000011010000000…
…11001111101101010
31020211011211001121000
430031000121331222
5203313344041132
610004113055430
7642464420556
oct141500317552
936734731530
1013103112042
115614402019
122658257576
13130a864b47
148c432a866
1551a51d87c
hex30d019f6a

13103112042 has 32 divisors (see below), whose sum is σ = 29445206400. Its totient is φ = 4318627104.

The previous prime is 13103112017. The next prime is 13103112053. The reversal of 13103112042 is 24021130131.

13103112042 is a `hidden beast` number, since 1 + 310 + 311 + 2 + 0 + 42 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1358398 + ... + 1368009.

It is an arithmetic number, because the mean of its divisors is an integer number (920162700).

Almost surely, 213103112042 is an apocalyptic number.

13103112042 is an abundant number, since it is smaller than the sum of its proper divisors (16342094358).

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

13103112042 is a wasteful number, since it uses less digits than its factorization.

13103112042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726507 (or 2726501 counting only the distinct ones).

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

Adding to 13103112042 its reverse (24021130131), we get a palindrome (37124242173).

The spelling of 13103112042 in words is "thirteen billion, one hundred three million, one hundred twelve thousand, forty-two".

Divisors: 1 2 3 6 9 18 27 54 89 178 267 534 801 1602 2403 4806 2726407 5452814 8179221 16358442 24537663 49075326 73612989 147225978 242650223 485300446 727950669 1455901338 2183852007 4367704014 6551556021 13103112042