Search a number
-
+
30872330739 = 332275037091
BaseRepresentation
bin11100110000001000…
…100110000111110011
32221200112201220012000
4130300020212013303
51001211304040424
622103233105043
72142021324105
oct346010460763
987615656160
1030872330739
1112102698028
125b970b8183
132bb0021633
1416cc241575
15c0a4dc3c9
hex7302261f3

30872330739 has 16 divisors (see below), whose sum is σ = 45938279040. Its totient is φ = 20490882120.

The previous prime is 30872330719. The next prime is 30872330779. The reversal of 30872330739 is 93703327803.

30872330739 is a `hidden beast` number, since 308 + 7 + 2 + 3 + 307 + 39 = 666.

It is not a de Polignac number, because 30872330739 - 29 = 30872330227 is a prime.

It is a super-2 number, since 2×308723307392 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30872330694 and 30872330703.

It is not an unprimeable number, because it can be changed into a prime (30872330719) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2512417 + ... + 2524674.

It is an arithmetic number, because the mean of its divisors is an integer number (2871142440).

Almost surely, 230872330739 is an apocalyptic number.

30872330739 is a deficient number, since it is larger than the sum of its proper divisors (15065948301).

30872330739 is a wasteful number, since it uses less digits than its factorization.

30872330739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5037327 (or 5037321 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 45.

The spelling of 30872330739 in words is "thirty billion, eight hundred seventy-two million, three hundred thirty thousand, seven hundred thirty-nine".

Divisors: 1 3 9 27 227 681 2043 6129 5037091 15111273 45333819 136001457 1143419657 3430258971 10290776913 30872330739