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30442099 = 130123399
BaseRepresentation
bin111010000100…
…0001001110011
32010021121201011
41310020021303
530243121344
63004251351
7516516322
oct164101163
963247634
1030442099
1116202666
12a240b57
1363cb29c
1440860b9
152a14d34
hex1d08273

30442099 has 4 divisors (see below), whose sum is σ = 30466800. Its totient is φ = 30417400.

The previous prime is 30442091. The next prime is 30442103. The reversal of 30442099 is 99024403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30442099 - 23 = 30442091 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30442099.

It is not an unprimeable number, because it can be changed into a prime (30442091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10399 + ... + 13000.

It is an arithmetic number, because the mean of its divisors is an integer number (7616700).

Almost surely, 230442099 is an apocalyptic number.

30442099 is a deficient number, since it is larger than the sum of its proper divisors (24701).

30442099 is a wasteful number, since it uses less digits than its factorization.

30442099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24700.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 30442099 is about 5517.4359081008. The cubic root of 30442099 is about 312.2421518911.

The spelling of 30442099 in words is "thirty million, four hundred forty-two thousand, ninety-nine".

Divisors: 1 1301 23399 30442099