Search a number
-
+
30170279029 = 112249341149
BaseRepresentation
bin11100000110010010…
…011110110001110101
32212212121200222021211
4130012102132301311
5443242042412104
621505433441421
72115435066112
oct340622366165
985777628254
1030170279029
1111882377200
125a1bb70271
132aca744417
141662cd1909
15bb8a61e04
hex70649ec75

30170279029 has 6 divisors (see below), whose sum is σ = 33162372950. Its totient is φ = 27427526280.

The previous prime is 30170278993. The next prime is 30170279033. The reversal of 30170279029 is 92097207103.

It can be written as a sum of positive squares in only one way, i.e., 19118592900 + 11051686129 = 138270^2 + 105127^2 .

It is not a de Polignac number, because 30170279029 - 29 = 30170278517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30170278982 and 30170279000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30170279089) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 124670454 + ... + 124670695.

Almost surely, 230170279029 is an apocalyptic number.

It is an amenable number.

30170279029 is a deficient number, since it is larger than the sum of its proper divisors (2992093921).

30170279029 is a wasteful number, since it uses less digits than its factorization.

30170279029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249341171 (or 249341160 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 40.

The spelling of 30170279029 in words is "thirty billion, one hundred seventy million, two hundred seventy-nine thousand, twenty-nine".

Divisors: 1 11 121 249341149 2742752639 30170279029