Search a number
-
+
30211344772 = 2271078976599
BaseRepresentation
bin11100001000101111…
…001000100110000100
32212222110222022220021
4130020233020212010
5443333101013042
621513501544524
72116444123240
oct341057104604
985873868807
1030211344772
11118a3575534
125a31875144
132b060c208b
141668541420
15bbc474867
hex708bc8984

30211344772 has 12 divisors (see below), whose sum is σ = 60422689600. Its totient is φ = 12947719176.

The previous prime is 30211344733. The next prime is 30211344773. The reversal of 30211344772 is 27744311203.

30211344772 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (30211344773) 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, 539488272 + ... + 539488327.

Almost surely, 230211344772 is an apocalyptic number.

It is an amenable number.

30211344772 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.

30211344772 is a wasteful number, since it uses less digits than its factorization.

30211344772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078976610 (or 1078976608 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 30211344772 its reverse (27744311203), we get a palindrome (57955655975).

The spelling of 30211344772 in words is "thirty billion, two hundred eleven million, three hundred forty-four thousand, seven hundred seventy-two".

Divisors: 1 2 4 7 14 28 1078976599 2157953198 4315906396 7552836193 15105672386 30211344772