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30171027 = 361173953
BaseRepresentation
bin111001100010…
…1111110010011
32002202211212110
41303011332103
530210433102
62554400403
7514310115
oct163057623
962684773
1030171027
1116037a37
12a130103
136334aa3
1440153b5
1529ae86c
hex1cc5f93

30171027 has 16 divisors (see below), whose sum is σ = 41167008. Its totient is φ = 19649280.

The previous prime is 30171017. The next prime is 30171041. The reversal of 30171027 is 72017103.

It is not a de Polignac number, because 30171027 - 222 = 25976723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30170994 and 30171012.

It is not an unprimeable number, because it can be changed into a prime (30171017) 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, 31183 + ... + 32135.

It is an arithmetic number, because the mean of its divisors is an integer number (2572938).

Almost surely, 230171027 is an apocalyptic number.

30171027 is a deficient number, since it is larger than the sum of its proper divisors (10995981).

30171027 is a wasteful number, since it uses less digits than its factorization.

30171027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 294, while the sum is 21.

The square root of 30171027 is about 5492.8159444860. The cubic root of 30171027 is about 311.3125994636.

The spelling of 30171027 in words is "thirty million, one hundred seventy-one thousand, twenty-seven".

Divisors: 1 3 61 173 183 519 953 2859 10553 31659 58133 164869 174399 494607 10057009 30171027