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30025353212 = 2219395070437
BaseRepresentation
bin11011111101101001…
…101000011111111100
32212111111222222102222
4123331221220133330
5442442442300322
621443215304512
72112025201631
oct337551503774
985444888388
1030025353212
11118085902a8
12599b51b138
132aa6700cba
14164b968188
15baae85e42
hex6fda687fc

30025353212 has 12 divisors (see below), whose sum is σ = 55309861320. Its totient is φ = 14222535696.

The previous prime is 30025353187. The next prime is 30025353217. The reversal of 30025353212 is 21235352003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025353217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197535143 + ... + 197535294.

It is an arithmetic number, because the mean of its divisors is an integer number (4609155110).

Almost surely, 230025353212 is an apocalyptic number.

It is an amenable number.

30025353212 is a deficient number, since it is larger than the sum of its proper divisors (25284508108).

30025353212 is a wasteful number, since it uses less digits than its factorization.

30025353212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395070460 (or 395070458 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The spelling of 30025353212 in words is "thirty billion, twenty-five million, three hundred fifty-three thousand, two hundred twelve".

Divisors: 1 2 4 19 38 76 395070437 790140874 1580281748 7506338303 15012676606 30025353212