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30055501 = 741104723
BaseRepresentation
bin111001010100…
…1110001001101
32002112222101201
41302221301031
530143234001
62552105501
7513316240
oct162516115
962488351
1030055501
1115a69163
12a095291
1362c4328
143dc5257
15298a501
hex1ca9c4d

30055501 has 8 divisors (see below), whose sum is σ = 35187264. Its totient is φ = 25133280.

The previous prime is 30055499. The next prime is 30055517. The reversal of 30055501 is 10555003.

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 30055501 - 21 = 30055499 is a prime.

It is a super-2 number, since 2×300555012 = 1806666280722002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52075 + ... + 52648.

It is an arithmetic number, because the mean of its divisors is an integer number (4398408).

Almost surely, 230055501 is an apocalyptic number.

It is an amenable number.

30055501 is a deficient number, since it is larger than the sum of its proper divisors (5131763).

30055501 is a wasteful number, since it uses less digits than its factorization.

30055501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104771.

The product of its (nonzero) digits is 375, while the sum is 19.

The square root of 30055501 is about 5482.2897588508. The cubic root of 30055501 is about 310.9147486750.

The spelling of 30055501 in words is "thirty million, fifty-five thousand, five hundred one".

Divisors: 1 7 41 287 104723 733061 4293643 30055501