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102680123170 = 2552119708277
BaseRepresentation
bin101111110100000110…
…1100101011100100010
3100211000221202201001211
41133220031211130202
53140242102420140
6115100503220334
710263336434452
oct1375015453442
9324027681054
10102680123170
113a601286329
1217a974476aa
1398b4b56b41
144d80d9bd62
152a0e6952ea
hex17e8365722

102680123170 has 16 divisors (see below), whose sum is σ = 185178980088. Its totient is φ = 40993214080.

The previous prime is 102680123149. The next prime is 102680123173. The reversal of 102680123170 is 71321086201.

It can be written as a sum of positive squares in 4 ways, for example, as 75217999081 + 27462124089 = 274259^2 + 165717^2 .

It is not an unprimeable number, because it can be changed into a prime (102680123173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9848929 + ... + 9859348.

Almost surely, 2102680123170 is an apocalyptic number.

102680123170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102680123170 is a deficient number, since it is larger than the sum of its proper divisors (82498856918).

102680123170 is a wasteful number, since it uses less digits than its factorization.

102680123170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19708805.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 102680123170 in words is "one hundred two billion, six hundred eighty million, one hundred twenty-three thousand, one hundred seventy".

Divisors: 1 2 5 10 521 1042 2605 5210 19708277 39416554 98541385 197082770 10268012317 20536024634 51340061585 102680123170