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30700067551 = 192955717001
BaseRepresentation
bin11100100101110111…
…011101101011011111
32221020112121000111221
4130211313131223133
51000333204130201
622034200554211
72134530161056
oct344567355337
987215530457
1030700067551
111202442a15a
125b49482967
132b8342915a
1416b33dd39d
15bea3114a1
hex725dddadf

30700067551 has 8 divisors (see below), whose sum is σ = 33430201200. Its totient is φ = 28081368000.

The previous prime is 30700067543. The next prime is 30700067597. The reversal of 30700067551 is 15576000703.

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 30700067551 - 23 = 30700067543 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 (30700061551) 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, 27857950 + ... + 27859051.

It is an arithmetic number, because the mean of its divisors is an integer number (4178775150).

Almost surely, 230700067551 is an apocalyptic number.

30700067551 is a deficient number, since it is larger than the sum of its proper divisors (2730133649).

30700067551 is a wasteful number, since it uses less digits than its factorization.

30700067551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55717049.

The product of its (nonzero) digits is 22050, while the sum is 34.

The spelling of 30700067551 in words is "thirty billion, seven hundred million, sixty-seven thousand, five hundred fifty-one".

Divisors: 1 19 29 551 55717001 1058623019 1615793029 30700067551