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30090902569 = 7133717351659
BaseRepresentation
bin11100000001100011…
…101011110000101001
32212200002100020020221
4130001203223300221
5443111232340234
621453520250041
72113452310630
oct340143536051
985602306227
1030090902569
1111841591522
1259b9470921
132ab7171ac0
14165654c517
15bb1ad2eb4
hex7018ebc29

30090902569 has 32 divisors (see below), whose sum is σ = 38256503040. Its totient is φ = 23030376192.

The previous prime is 30090902563. The next prime is 30090902591. The reversal of 30090902569 is 96520909003.

It is a cyclic number.

It is not a de Polignac number, because 30090902569 - 23 = 30090902561 is a prime.

It is a super-2 number, since 2×300909025692 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30090902561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 556662 + ... + 608320.

It is an arithmetic number, because the mean of its divisors is an integer number (1195515720).

Almost surely, 230090902569 is an apocalyptic number.

It is an amenable number.

30090902569 is a deficient number, since it is larger than the sum of its proper divisors (8165600471).

30090902569 is a wasteful number, since it uses less digits than its factorization.

30090902569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51889.

The product of its (nonzero) digits is 131220, while the sum is 43.

The spelling of 30090902569 in words is "thirty billion, ninety million, nine hundred two thousand, five hundred sixty-nine".

Divisors: 1 7 13 37 91 173 259 481 1211 2249 3367 6401 15743 44807 51659 83213 361613 582491 671567 1911383 4700969 8937007 13379681 24847979 62559049 116181091 173935853 330669259 813267637 2314684813 4298700367 30090902569