Search a number
-
+
30980063680 = 26596812699
BaseRepresentation
bin11100110110100011…
…100100000111000000
32221222001110021222221
4130312203210013000
51001421344014210
622122042140424
72144500124236
oct346643440700
987861407887
1030980063680
1112158490415
1260071b1714
132bc9441b37
1416dc686956
15c14bbd1da
hex7368e41c0

30980063680 has 28 divisors (see below), whose sum is σ = 73771277400. Its totient is φ = 12392025344.

The previous prime is 30980063641. The next prime is 30980063689. The reversal of 30980063680 is 8636008903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30980063689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48406030 + ... + 48406669.

Almost surely, 230980063680 is an apocalyptic number.

It is an amenable number.

30980063680 is an abundant number, since it is smaller than the sum of its proper divisors (42791213720).

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

30980063680 is an equidigital number, since it uses as much as digits as its factorization.

30980063680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96812716 (or 96812706 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 30980063680 in words is "thirty billion, nine hundred eighty million, sixty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 96812699 193625398 387250796 484063495 774501592 968126990 1549003184 1936253980 3098006368 3872507960 6196012736 7745015920 15490031840 30980063680