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30141147 = 347241887
BaseRepresentation
bin111001011111…
…0101011011011
32002201022212210
41302332223123
530204004042
62554010203
7514124031
oct162765333
962638783
1030141147
1116017543
12a116963
1363242ca
144008551
1529a5a9c
hex1cbeadb

30141147 has 16 divisors (see below), whose sum is σ = 41260032. Its totient is φ = 19562880.

The previous prime is 30141143. The next prime is 30141149. The reversal of 30141147 is 74114103.

It is not a de Polignac number, because 30141147 - 22 = 30141143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30141143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33538 + ... + 34424.

It is an arithmetic number, because the mean of its divisors is an integer number (2578752).

Almost surely, 230141147 is an apocalyptic number.

30141147 is a deficient number, since it is larger than the sum of its proper divisors (11118885).

30141147 is a wasteful number, since it uses less digits than its factorization.

30141147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 30141147 is about 5490.0953543632. The cubic root of 30141147 is about 311.2097956167.

The spelling of 30141147 in words is "thirty million, one hundred forty-one thousand, one hundred forty-seven".

Divisors: 1 3 47 141 241 723 887 2661 11327 33981 41689 125067 213767 641301 10047049 30141147