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30506106 = 2310095039
BaseRepresentation
bin111010001011…
…1110001111010
32010101212111210
41310113301322
530302143411
63005503550
7520204041
oct164276172
963355453
1030506106
1116246764
12a271bb6
136421467
1440a1558
152a28ca6
hex1d17c7a

30506106 has 16 divisors (see below), whose sum is σ = 61084800. Its totient is φ = 10156608.

The previous prime is 30506071. The next prime is 30506107. The reversal of 30506106 is 60160503.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30506107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3535 + ... + 8573.

It is an arithmetic number, because the mean of its divisors is an integer number (3817800).

Almost surely, 230506106 is an apocalyptic number.

30506106 is an abundant number, since it is smaller than the sum of its proper divisors (30578694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30506106 is a wasteful number, since it uses less digits than its factorization.

30506106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6053.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 30506106 is about 5523.2332921940. The cubic root of 30506106 is about 312.4608369055.

Adding to 30506106 its reverse (60160503), we get a palindrome (90666609).

The spelling of 30506106 in words is "thirty million, five hundred six thousand, one hundred six".