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30431027 = 1119145603
BaseRepresentation
bin111010000010…
…1011100110011
32010021001112002
41310011130303
530242243102
63004124215
7516442124
oct164053463
963231462
1030431027
11161a5310
12a23666b
1363c6233
14408204b
152a11902
hex1d05733

30431027 has 8 divisors (see below), whose sum is σ = 34944960. Its totient is φ = 26208360.

The previous prime is 30431021. The next prime is 30431059. The reversal of 30431027 is 72013403.

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 30431027 - 222 = 26236723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30431021) 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, 72593 + ... + 73010.

It is an arithmetic number, because the mean of its divisors is an integer number (4368120).

Almost surely, 230431027 is an apocalyptic number.

30431027 is a deficient number, since it is larger than the sum of its proper divisors (4513933).

30431027 is a wasteful number, since it uses less digits than its factorization.

30431027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145633.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 30431027 is about 5516.4324522285. The cubic root of 30431027 is about 312.2042924308.

The spelling of 30431027 in words is "thirty million, four hundred thirty-one thousand, twenty-seven".

Divisors: 1 11 19 209 145603 1601633 2766457 30431027