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139841919780 = 223513717012399
BaseRepresentation
bin1000001000111100111…
…0100101101100100100
3111100221211020120110020
42002033032211230210
54242344012413110
6144124213355140
713050261464013
oct2021716455444
9440854216406
10139841919780
1154341133132
1223128938ab0
1310257bc42c4
146aa863ca7a
153986de7d70
hex208f3a5b24

139841919780 has 48 divisors (see below), whose sum is σ = 394415481600. Its totient is φ = 37018978048.

The previous prime is 139841919773. The next prime is 139841919793. The reversal of 139841919780 is 87919148931.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8497980 + ... + 8514419.

It is an arithmetic number, because the mean of its divisors is an integer number (8216989200).

Almost surely, 2139841919780 is an apocalyptic number.

139841919780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139841919780 is an abundant number, since it is smaller than the sum of its proper divisors (254573561820).

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

139841919780 is a wasteful number, since it uses less digits than its factorization.

139841919780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17012548 (or 17012546 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 60.

The spelling of 139841919780 in words is "one hundred thirty-nine billion, eight hundred forty-one million, nine hundred nineteen thousand, seven hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 137 274 411 548 685 822 1370 1644 2055 2740 4110 8220 17012399 34024798 51037197 68049596 85061995 102074394 170123990 204148788 255185985 340247980 510371970 1020743940 2330698663 4661397326 6992095989 9322794652 11653493315 13984191978 23306986630 27968383956 34960479945 46613973260 69920959890 139841919780