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142208027 = 1319896469
BaseRepresentation
bin10000111100111…
…10110000011011
3100220120220201222
420132132300123
5242401124102
622040002255
73344514443
oct1036366033
9326526658
10142208027
11732aaaa5
123b76038b
1323601380
1414c5b123
15c740aa2
hex879ec1b

142208027 has 16 divisors (see below), whose sum is σ = 163044000. Its totient is φ = 122943744.

The previous prime is 142208021. The next prime is 142208047. The reversal of 142208027 is 720802241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142208027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142207987 and 142208005.

It is not an unprimeable number, because it can be changed into a prime (142208021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18749 + ... + 25217.

It is an arithmetic number, because the mean of its divisors is an integer number (10190250).

Almost surely, 2142208027 is an apocalyptic number.

142208027 is a deficient number, since it is larger than the sum of its proper divisors (20835973).

142208027 is a wasteful number, since it uses less digits than its factorization.

142208027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590.

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 142208027 is about 11925.1007123630. The cubic root of 142208027 is about 521.9649851980.

The spelling of 142208027 in words is "one hundred forty-two million, two hundred eight thousand, twenty-seven".

Divisors: 1 13 19 89 247 1157 1691 6469 21983 84097 122911 575741 1597843 7484633 10939079 142208027