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30906622 = 221617151
BaseRepresentation
bin111010111100…
…1100011111110
32011011012220201
41311321203332
530403002442
63022234114
7523462525
oct165714376
964135821
1030906622
111649a66a
12a42593a
136531856
1441674bc
152aa77b7
hex1d798fe

30906622 has 8 divisors (see below), whose sum is σ = 46387872. Its totient is φ = 15444000.

The previous prime is 30906613. The next prime is 30906643. The reversal of 30906622 is 22660903.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 747 + ... + 7897.

It is an arithmetic number, because the mean of its divisors is an integer number (5798484).

Almost surely, 230906622 is an apocalyptic number.

30906622 is a deficient number, since it is larger than the sum of its proper divisors (15481250).

30906622 is a wasteful number, since it uses less digits than its factorization.

30906622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9314.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 30906622 is about 5559.3724465986. The cubic root of 30906622 is about 313.8223331267.

The spelling of 30906622 in words is "thirty million, nine hundred six thousand, six hundred twenty-two".

Divisors: 1 2 2161 4322 7151 14302 15453311 30906622