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30254255555221 = 67636781709123
BaseRepresentation
bin1101110000100000111100…
…01001111100001010010101
310222010021112002101012220201
412320100132021330022111
512431141203410231341
6144202340234100501
76241540441062415
oct670203611741225
9128107462335821
1030254255555221
119704837596995
123487588b7a731
1313b5c6c058949
14768457036645
15376eb14e8331
hex1b841e27c295

30254255555221 has 8 divisors (see below), whose sum is σ = 30705903129824. Its totient is φ = 29802610672560.

The previous prime is 30254255555179. The next prime is 30254255555297. The reversal of 30254255555221 is 12255555245203.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30254255555221 - 29 = 30254255554709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30254255555621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42309766 + ... + 43018888.

It is an arithmetic number, because the mean of its divisors is an integer number (3838237891228).

Almost surely, 230254255555221 is an apocalyptic number.

It is an amenable number.

30254255555221 is a deficient number, since it is larger than the sum of its proper divisors (451647574603).

30254255555221 is an equidigital number, since it uses as much as digits as its factorization.

30254255555221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1345971.

The product of its (nonzero) digits is 3000000, while the sum is 46.

The spelling of 30254255555221 in words is "thirty trillion, two hundred fifty-four billion, two hundred fifty-five million, five hundred fifty-five thousand, two hundred twenty-one".

Divisors: 1 67 636781 709123 42664327 47511241 451556053063 30254255555221