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30427837 = 1161137331
BaseRepresentation
bin111010000010…
…0101010111101
32010020220010221
41310010222331
530242142322
63004101341
7516426616
oct164045275
963226127
1030427837
11161a2980
12a234851
1363c494b
144080c0d
152a109c7
hex1d04abd

30427837 has 16 divisors (see below), whose sum is σ = 34087104. Its totient is φ = 26928000.

The previous prime is 30427829. The next prime is 30427853. The reversal of 30427837 is 73872403.

It is not a de Polignac number, because 30427837 - 23 = 30427829 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 (30427867) 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 15 ways as a sum of consecutive naturals, for example, 91762 + ... + 92092.

It is an arithmetic number, because the mean of its divisors is an integer number (2130444).

Almost surely, 230427837 is an apocalyptic number.

It is an amenable number.

30427837 is a deficient number, since it is larger than the sum of its proper divisors (3659267).

30427837 is a wasteful number, since it uses less digits than its factorization.

30427837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 30427837 is about 5516.1433085082. The cubic root of 30427837 is about 312.1933828801.

The spelling of 30427837 in words is "thirty million, four hundred twenty-seven thousand, eight hundred thirty-seven".

Divisors: 1 11 61 137 331 671 1507 3641 8357 20191 45347 91927 222101 498817 2766167 30427837