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30053255805 = 3251264752807
BaseRepresentation
bin11011111111010100…
…000100101001111101
32212120110111120121100
4123333110010221331
5443022113141210
621450053323313
72112514313406
oct337724045175
985513446540
1030053255805
11118223089a1
1259a8936539
132aac420401
14165154c9ad
15bad6485c0
hex6ff504a7d

30053255805 has 24 divisors (see below), whose sum is σ = 52097415552. Its totient is φ = 16026832224.

The previous prime is 30053255801. The next prime is 30053255851. The reversal of 30053255805 is 50855235003.

30053255805 is a `hidden beast` number, since 3 + 0 + 0 + 53 + 25 + 580 + 5 = 666.

It is not a de Polignac number, because 30053255805 - 22 = 30053255801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30053255805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30053255801) 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, 542712 + ... + 595518.

It is an arithmetic number, because the mean of its divisors is an integer number (2170725648).

Almost surely, 230053255805 is an apocalyptic number.

It is an amenable number.

30053255805 is a deficient number, since it is larger than the sum of its proper divisors (22044159747).

30053255805 is a wasteful number, since it uses less digits than its factorization.

30053255805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65465 (or 65462 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 30053255805 in words is "thirty billion, fifty-three million, two hundred fifty-five thousand, eight hundred five".

Divisors: 1 3 5 9 15 45 12647 37941 52807 63235 113823 158421 189705 264035 475263 569115 792105 2376315 667850129 2003550387 3339250645 6010651161 10017751935 30053255805