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30055002 = 235009167
BaseRepresentation
bin111001010100…
…1101001011010
32002112221201020
41302221221122
530143230002
62552103310
7513314625
oct162515132
962487636
1030055002
1115a6884a
12a094b36
1362c4033
143dc4dbc
15298a2bc
hex1ca9a5a

30055002 has 8 divisors (see below), whose sum is σ = 60110016. Its totient is φ = 10018332.

The previous prime is 30055001. The next prime is 30055021. The reversal of 30055002 is 20055003.

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

30055002 is an admirable number.

It is a super-3 number, since 3×300550023 (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (30055001) 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 3 ways as a sum of consecutive naturals, for example, 2504578 + ... + 2504589.

It is an arithmetic number, because the mean of its divisors is an integer number (7513752).

Almost surely, 230055002 is an apocalyptic number.

30055002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30055002 is a wasteful number, since it uses less digits than its factorization.

30055002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5009172.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 30055002 is about 5482.2442484807. The cubic root of 30055002 is about 310.9130279992.

Subtracting from 30055002 its reverse (20055003), we obtain a palindrome (9999999).

The spelling of 30055002 in words is "thirty million, fifty-five thousand, two".

Divisors: 1 2 3 6 5009167 10018334 15027501 30055002