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139515983380 = 22514834703843
BaseRepresentation
bin1000000111101111001…
…1001111011000010100
3111100010002221021202201
42001323303033120110
54241212042432010
6144032011414244
713036223202064
oct2017363173024
9440102837681
10139515983380
1154194154304
1223057754384
1310205515027
146a772373a4
1539684b423a
hex207bccf614

139515983380 has 24 divisors (see below), whose sum is σ = 293181188832. Its totient is φ = 55768750752.

The previous prime is 139515983377. The next prime is 139515983389. The reversal of 139515983380 is 83389515931.

139515983380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139515983389) 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, 2322262 + ... + 2381581.

It is an arithmetic number, because the mean of its divisors is an integer number (12215882868).

Almost surely, 2139515983380 is an apocalyptic number.

139515983380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139515983380 is an abundant number, since it is smaller than the sum of its proper divisors (153665205452).

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

139515983380 is a wasteful number, since it uses less digits than its factorization.

139515983380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705335 (or 4705333 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 139515983380 in words is "one hundred thirty-nine billion, five hundred fifteen million, nine hundred eighty-three thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 1483 2966 5932 7415 14830 29660 4703843 9407686 18815372 23519215 47038430 94076860 6975799169 13951598338 27903196676 34878995845 69757991690 139515983380