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102430433142 = 2338092344697
BaseRepresentation
bin101111101100101010…
…1000101111101110110
3100210101112221010202000
41133121111011331312
53134234142330032
6115020023400130
710254215213262
oct1373125057566
9323345833660
10102430433142
113a493344534
1217a278b3046
1398751c256b
144d59b630a2
1529e77c2e7c
hex17d9545f76

102430433142 has 32 divisors (see below), whose sum is σ = 227904645600. Its totient is φ = 34101258624.

The previous prime is 102430433123. The next prime is 102430433143. The reversal of 102430433142 is 241334034201.

102430433142 is a `hidden beast` number, since 1 + 0 + 24 + 304 + 331 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102430433143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1128663 + ... + 1216034.

It is an arithmetic number, because the mean of its divisors is an integer number (7122020175).

Almost surely, 2102430433142 is an apocalyptic number.

102430433142 is an abundant number, since it is smaller than the sum of its proper divisors (125474212458).

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

102430433142 is a wasteful number, since it uses less digits than its factorization.

102430433142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345517 (or 2345511 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 102430433142 its reverse (241334034201), we get a palindrome (343764467343).

The spelling of 102430433142 in words is "one hundred two billion, four hundred thirty million, four hundred thirty-three thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 809 1618 2427 4854 7281 14562 21843 43686 2344697 4689394 7034091 14068182 21102273 42204546 63306819 126613638 1896859873 3793719746 5690579619 11381159238 17071738857 34143477714 51215216571 102430433142