Search a number
-
+
30727260660 = 2235512121011
BaseRepresentation
bin11100100111011111…
…001100100111110100
32221022102202120110010
4130213133030213310
51000412134320120
622041011500220
72135310256215
oct344737144764
987272676403
1030727260660
11120388127a8
125b565b7670
132b88c5a655
1416b6c7b40c
15bec8d37e0
hex7277cc9f4

30727260660 has 24 divisors (see below), whose sum is σ = 86036330016. Its totient is φ = 8193936160.

The previous prime is 30727260647. The next prime is 30727260661. The reversal of 30727260660 is 6606272703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30727260661) 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, 256060446 + ... + 256060565.

It is an arithmetic number, because the mean of its divisors is an integer number (3584847084).

Almost surely, 230727260660 is an apocalyptic number.

30727260660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30727260660 is an abundant number, since it is smaller than the sum of its proper divisors (55309069356).

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

30727260660 is a wasteful number, since it uses less digits than its factorization.

30727260660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512121023 (or 512121021 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 39.

The spelling of 30727260660 in words is "thirty billion, seven hundred twenty-seven million, two hundred sixty thousand, six hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 512121011 1024242022 1536363033 2048484044 2560605055 3072726066 5121210110 6145452132 7681815165 10242420220 15363630330 30727260660