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102008310940 = 2255100415547
BaseRepresentation
bin101111100000000101…
…0110100110010011100
3100202022010122002221101
41133000022310302130
53132403111422230
6114510104042444
710240601223304
oct1370012646234
9322263562841
10102008310940
113a297039908
121792a463424
139808906903
144d19a80604
1529c06deaca
hex17c02b4c9c

102008310940 has 12 divisors (see below), whose sum is σ = 214217453016. Its totient is φ = 40803324368.

The previous prime is 102008310917. The next prime is 102008310941. The reversal of 102008310940 is 49013800201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102008310899 and 102008310908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102008310941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550207754 + ... + 2550207793.

It is an arithmetic number, because the mean of its divisors is an integer number (17851454418).

Almost surely, 2102008310940 is an apocalyptic number.

102008310940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102008310940 is an abundant number, since it is smaller than the sum of its proper divisors (112209142076).

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

102008310940 is a wasteful number, since it uses less digits than its factorization.

102008310940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100415556 (or 5100415554 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 102008310940 in words is "one hundred two billion, eight million, three hundred ten thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 5100415547 10200831094 20401662188 25502077735 51004155470 102008310940