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140528139 = 373641681
BaseRepresentation
bin10000110000001…
…00101000001011
3100210102120100220
420120010220023
5241433400024
621540001123
73324320013
oct1030045013
9323376326
10140528139
1172362964
123b0901a3
132316385b
1414940c43
15c50ce79
hex8604a0b

140528139 has 8 divisors (see below), whose sum is σ = 189937872. Its totient is φ = 92401920.

The previous prime is 140528119. The next prime is 140528173. The reversal of 140528139 is 931825041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140528139 - 28 = 140527883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140528119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 320622 + ... + 321059.

It is an arithmetic number, because the mean of its divisors is an integer number (23742234).

Almost surely, 2140528139 is an apocalyptic number.

140528139 is a deficient number, since it is larger than the sum of its proper divisors (49409733).

140528139 is an equidigital number, since it uses as much as digits as its factorization.

140528139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641757.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 140528139 is about 11854.4565037795. The cubic root of 140528139 is about 519.9015333773.

The spelling of 140528139 in words is "one hundred forty million, five hundred twenty-eight thousand, one hundred thirty-nine".

Divisors: 1 3 73 219 641681 1925043 46842713 140528139