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139853500 = 2253279707
BaseRepresentation
bin10000101010111…
…11111010111100
3100202011021221021
420111133322330
5241300303000
621513313524
73315510103
oct1025377274
9322137837
10139853500
1171a42006
123aa058a4
1322c88767
141480703a
15c42811a
hex855febc

139853500 has 24 divisors (see below), whose sum is σ = 305441136. Its totient is φ = 55941200.

The previous prime is 139853491. The next prime is 139853507. The reversal of 139853500 is 5358931.

139853500 is digitally balanced in base 3, 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 (139853507) 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 7 ways as a sum of consecutive naturals, for example, 139354 + ... + 140353.

It is an arithmetic number, because the mean of its divisors is an integer number (12726714).

Almost surely, 2139853500 is an apocalyptic number.

139853500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139853500 is an abundant number, since it is smaller than the sum of its proper divisors (165587636).

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

139853500 is a wasteful number, since it uses less digits than its factorization.

139853500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279726 (or 279714 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 139853500 is about 11825.9671908897. The cubic root of 139853500 is about 519.0682278328.

The spelling of 139853500 in words is "one hundred thirty-nine million, eight hundred fifty-three thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 279707 559414 1118828 1398535 2797070 5594140 6992675 13985350 27970700 34963375 69926750 139853500