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30161013 = 371141601
BaseRepresentation
bin111001100001…
…1100001110101
32002202100010120
41303003201311
530210123023
62554242153
7514235661
oct163034165
962670116
1030161013
1116030463
12a126359
13633036c
1440118a1
1529ab8e3
hex1cc3875

30161013 has 8 divisors (see below), whose sum is σ = 40781376. Its totient is φ = 19824000.

The previous prime is 30161011. The next prime is 30161029. The reversal of 30161013 is 31016103.

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

It is not a de Polignac number, because 30161013 - 21 = 30161011 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30160983 and 30161001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30161011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70588 + ... + 71013.

It is an arithmetic number, because the mean of its divisors is an integer number (5097672).

Almost surely, 230161013 is an apocalyptic number.

It is an amenable number.

30161013 is a deficient number, since it is larger than the sum of its proper divisors (10620363).

30161013 is a wasteful number, since it uses less digits than its factorization.

30161013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141675.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 30161013 is about 5491.9043145343. The cubic root of 30161013 is about 311.2781532896.

Adding to 30161013 its reverse (31016103), we get a palindrome (61177116).

The spelling of 30161013 in words is "thirty million, one hundred sixty-one thousand, thirteen".

Divisors: 1 3 71 213 141601 424803 10053671 30161013