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30230055051 = 3721910823507
BaseRepresentation
bin11100001001110110…
…100000100010001011
32220000210011220120120
4130021312200202023
5443402343230201
621515410554323
72120062141200
oct341166404213
986023156516
1030230055051
1111903094879
125a37b989a3
132b09c43451
14166ac11ca7
15bbde1d536
hex709da088b

30230055051 has 24 divisors (see below), whose sum is σ = 49355196480. Its totient is φ = 16365141072.

The previous prime is 30230055047. The next prime is 30230055181. The reversal of 30230055051 is 15055003203.

It is not a de Polignac number, because 30230055051 - 22 = 30230055047 is a prime.

It is a super-2 number, since 2×302300550512 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30230051051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5408961 + ... + 5414546.

It is an arithmetic number, because the mean of its divisors is an integer number (2056466520).

Almost surely, 230230055051 is an apocalyptic number.

30230055051 is a deficient number, since it is larger than the sum of its proper divisors (19125141429).

30230055051 is a wasteful number, since it uses less digits than its factorization.

30230055051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823543 (or 10823536 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 24.

Adding to 30230055051 its reverse (15055003203), we get a palindrome (45285058254).

The spelling of 30230055051 in words is "thirty billion, two hundred thirty million, fifty-five thousand, fifty-one".

Divisors: 1 3 7 19 21 49 57 133 147 399 931 2793 10823507 32470521 75764549 205646633 227293647 530351843 616939899 1439526431 1591055529 4318579293 10076685017 30230055051