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30001600511 = 30899712399
BaseRepresentation
bin11011111100001111…
…000001011111111111
32212102212022012212022
4123330033001133333
5442420402204021
621441010230355
72111316253031
oct337417013777
985385265768
1030001600511
11117a6137573
1259935853bb
132aa180574c
141648743c51
15ba8d431ab
hex6fc3c17ff

30001600511 has 4 divisors (see below), whose sum is σ = 30011316000. Its totient is φ = 29991885024.

The previous prime is 30001600441. The next prime is 30001600549. The reversal of 30001600511 is 11500610003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11500610003 = 41280502683.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30001600511 is a prime.

It is a super-2 number, since 2×300016005112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30001600511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30001600411) 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, 4853111 + ... + 4859288.

It is an arithmetic number, because the mean of its divisors is an integer number (7502829000).

Almost surely, 230001600511 is an apocalyptic number.

30001600511 is a deficient number, since it is larger than the sum of its proper divisors (9715489).

30001600511 is an equidigital number, since it uses as much as digits as its factorization.

30001600511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9715488.

The product of its (nonzero) digits is 90, while the sum is 17.

The spelling of 30001600511 in words is "thirty billion, one million, six hundred thousand, five hundred eleven".

Divisors: 1 3089 9712399 30001600511