Search a number
-
+
30840106 = 2111401823
BaseRepresentation
bin111010110100…
…1010100101010
32011000211200011
41311221110222
530343340411
63021002134
7523064563
oct165512452
964024604
1030840106
11164546a0
12a3b334a
13650a4ab
14414b16a
152a92c21
hex1d6952a

30840106 has 8 divisors (see below), whose sum is σ = 50465664. Its totient is φ = 14018220.

The previous prime is 30840101. The next prime is 30840107. The reversal of 30840106 is 60104803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×308401062 = 1902224276182472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1401823 = 30840106 / (3 + 0 + 8 + 4 + 0 + 1 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (30840101) 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 3 ways as a sum of consecutive naturals, for example, 700890 + ... + 700933.

It is an arithmetic number, because the mean of its divisors is an integer number (6308208).

Almost surely, 230840106 is an apocalyptic number.

30840106 is a deficient number, since it is larger than the sum of its proper divisors (19625558).

30840106 is a wasteful number, since it uses less digits than its factorization.

30840106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401836.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30840106 is about 5553.3868944996. The cubic root of 30840106 is about 313.5970394543.

Adding to 30840106 its reverse (60104803), we get a palindrome (90944909).

The spelling of 30840106 in words is "thirty million, eight hundred forty thousand, one hundred six".

Divisors: 1 2 11 22 1401823 2803646 15420053 30840106