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102643357060 = 2255132167853
BaseRepresentation
bin101111110011000000…
…1010101010110000100
3100210221101120210110001
41133212001111112010
53140203144411220
6115053111211044
710262412065566
oct1374601252604
9323841523401
10102643357060
113a592554412
1217a87076a84
1398aa35324a
144d7a14b336
152a0b33180a
hex17e6055584

102643357060 has 12 divisors (see below), whose sum is σ = 215551049868. Its totient is φ = 41057342816.

The previous prime is 102643357039. The next prime is 102643357067. The reversal of 102643357060 is 60753346201.

It can be written as a sum of positive squares in 2 ways, for example, as 75620600064 + 27022756996 = 274992^2 + 164386^2 .

It is not an unprimeable number, because it can be changed into a prime (102643357067) 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, 2566083907 + ... + 2566083946.

It is an arithmetic number, because the mean of its divisors is an integer number (17962587489).

Almost surely, 2102643357060 is an apocalyptic number.

102643357060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102643357060 is an abundant number, since it is smaller than the sum of its proper divisors (112907692808).

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

102643357060 is a wasteful number, since it uses less digits than its factorization.

102643357060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132167862 (or 5132167860 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 102643357060 in words is "one hundred two billion, six hundred forty-three million, three hundred fifty-seven thousand, sixty".

Divisors: 1 2 4 5 10 20 5132167853 10264335706 20528671412 25660839265 51321678530 102643357060