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30025305255 = 3511283643009
BaseRepresentation
bin11011111101101001…
…011100110010100111
32212111111220112122210
4123331221130302213
5442442434232010
621443214254503
72112024612051
oct337551346247
985444815583
1030025305255
1111808558270
12599b4b7433
132aa66b521a
14164b9548d1
15baae76b20
hex6fda5cca7

30025305255 has 32 divisors (see below), whose sum is σ = 52593073920. Its totient is φ = 14506260480.

The previous prime is 30025305253. The next prime is 30025305257. The reversal of 30025305255 is 55250352003.

It is an interprime number because it is at equal distance from previous prime (30025305253) and next prime (30025305257).

It is not a de Polignac number, because 30025305255 - 21 = 30025305253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30025305251) 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, 274810 + ... + 368199.

It is an arithmetic number, because the mean of its divisors is an integer number (1643533560).

Almost surely, 230025305255 is an apocalyptic number.

30025305255 is a deficient number, since it is larger than the sum of its proper divisors (22567768665).

30025305255 is a wasteful number, since it uses less digits than its factorization.

30025305255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643311.

The product of its (nonzero) digits is 22500, while the sum is 30.

Adding to 30025305255 its reverse (55250352003), we get a palindrome (85275657258).

The spelling of 30025305255 in words is "thirty billion, twenty-five million, three hundred five thousand, two hundred fifty-five".

Divisors: 1 3 5 11 15 33 55 165 283 849 1415 3113 4245 9339 15565 46695 643009 1929027 3215045 7073099 9645135 21219297 35365495 106096485 181971547 545914641 909857735 2001687017 2729573205 6005061051 10008435085 30025305255