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30353685684 = 22372531142771
BaseRepresentation
bin11100010001001110…
…000111110010110100
32220100101210222220220
4130101032013302310
5444131020420214
621535544454340
72123123033310
oct342116076264
986311728826
1030353685684
1111966956353
125a7147a3b0
132b2973ba7a
14167d3d4b40
15bc9bde9a9
hex711387cb4

30353685684 has 48 divisors (see below), whose sum is σ = 80975709696. Its totient is φ = 8668994400.

The previous prime is 30353685683. The next prime is 30353685709. The reversal of 30353685684 is 48658635303.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30353685683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141219 + ... + 283989.

It is an arithmetic number, because the mean of its divisors is an integer number (1686993952).

Almost surely, 230353685684 is an apocalyptic number.

It is an amenable number.

30353685684 is an abundant number, since it is smaller than the sum of its proper divisors (50622024012).

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

30353685684 is a wasteful number, since it uses less digits than its factorization.

30353685684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145316 (or 145314 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 30353685684 in words is "thirty billion, three hundred fifty-three million, six hundred eighty-five thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 2531 5062 7593 10124 15186 17717 30372 35434 53151 70868 106302 142771 212604 285542 428313 571084 856626 999397 1713252 1998794 2998191 3997588 5996382 11992764 361353401 722706802 1084060203 1445413604 2168120406 2529473807 4336240812 5058947614 7588421421 10117895228 15176842842 30353685684