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30850133 = 107401719
BaseRepresentation
bin111010110101…
…1110001010101
32011001100102112
41311223301111
530344201013
63021120405
7523136036
oct165536125
964040375
1030850133
1116461186
12a3b9105
136511c22
144150a8d
152a95ba8
hex1d6bc55

30850133 has 8 divisors (see below), whose sum is σ = 31259520. Its totient is φ = 30443200.

The previous prime is 30850117. The next prime is 30850151. The reversal of 30850133 is 33105803.

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 30850133 - 24 = 30850117 is a prime.

It is a super-2 number, since 2×308501332 = 1903461412235378, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30850099 and 30850108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30850033) 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, 42548 + ... + 43266.

It is an arithmetic number, because the mean of its divisors is an integer number (3907440).

Almost surely, 230850133 is an apocalyptic number.

It is an amenable number.

30850133 is a deficient number, since it is larger than the sum of its proper divisors (409387).

30850133 is a wasteful number, since it uses less digits than its factorization.

30850133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30850133 is about 5554.2896035407. The cubic root of 30850133 is about 313.6310222255.

Adding to 30850133 its reverse (33105803), we get a palindrome (63955936).

The spelling of 30850133 in words is "thirty million, eight hundred fifty thousand, one hundred thirty-three".

Divisors: 1 107 401 719 42907 76933 288319 30850133