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36028139 = 719126947
BaseRepresentation
bin1000100101101…
…1111011101011
32111210102022112
42021123323223
533210400024
63324112535
7615143210
oct211337353
974712275
1036028139
1119378524
121009574b
137605a34
144adbb07
15326a00e
hex225beeb

36028139 has 8 divisors (see below), whose sum is σ = 41392128. Its totient is φ = 30718440.

The previous prime is 36028133. The next prime is 36028171. The reversal of 36028139 is 93182063.

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

It is a cyclic number.

It is not a de Polignac number, because 36028139 - 216 = 35962603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36028133) 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, 12137 + ... + 14810.

It is an arithmetic number, because the mean of its divisors is an integer number (5174016).

Almost surely, 236028139 is an apocalyptic number.

36028139 is a deficient number, since it is larger than the sum of its proper divisors (5363989).

36028139 is a wasteful number, since it uses less digits than its factorization.

36028139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27145.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 36028139 is about 6002.3444586261. The cubic root of 36028139 is about 330.2787329758.

The spelling of 36028139 in words is "thirty-six million, twenty-eight thousand, one hundred thirty-nine".

Divisors: 1 7 191 1337 26947 188629 5146877 36028139