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139955353289990 = 2573847519719831
BaseRepresentation
bin11111110100100111100101…
…000111100000010100000110
3200100112121020012120200021222
4133310213211013200110012
5121321012030420234430
61213354333545040342
741323304060356550
oct3764474507402406
9610477205520258
10139955353289990
11406598063381a7
12138443507860b2
13601296ba680b4
14267bc379444d0
15112a85ead69e5
hex7f49e51e0506

139955353289990 has 32 divisors (see below), whose sum is σ = 287982995549184. Its totient is φ = 47972219188320.

The previous prime is 139955353289897. The next prime is 139955353290031. The reversal of 139955353289990 is 99982353559931.

It is a Smith number, since the sum of its digits (80) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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, 259590626 + ... + 260129205.

It is an arithmetic number, because the mean of its divisors is an integer number (8999468610912).

Almost surely, 2139955353289990 is an apocalyptic number.

139955353289990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139955353289990 is an abundant number, since it is smaller than the sum of its proper divisors (148027642259194).

139955353289990 is a wasteful number, since it uses less digits than its factorization.

139955353289990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519723692.

The product of its (nonzero) digits is 3188646000, while the sum is 80.

The spelling of 139955353289990 in words is "one hundred thirty-nine trillion, nine hundred fifty-five billion, three hundred fifty-three million, two hundred eighty-nine thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 3847 7694 19235 26929 38470 53858 134645 269290 519719831 1039439662 2598599155 3638038817 5197198310 7276077634 18190194085 36380388170 1999362189857 3998724379714 9996810949285 13995535328999 19993621898570 27991070657998 69977676644995 139955353289990