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30402926 = 219800077
BaseRepresentation
bin111001111111…
…0100101101110
32010012121222022
41303332211232
530240343201
63003350142
7516264161
oct163764556
963177868
1030402926
1116186194
12a222352
1363b64c8
144075ad8
152a0841b
hex1cfe96e

30402926 has 8 divisors (see below), whose sum is σ = 48004680. Its totient is φ = 14401368.

The previous prime is 30402901. The next prime is 30402929. The reversal of 30402926 is 62920403.

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

It is a super-2 number, since 2×304029262 = 1848675818722952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30402895 and 30402904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30402929) by changing a digit.

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, 400001 + ... + 400076.

It is an arithmetic number, because the mean of its divisors is an integer number (6000585).

Almost surely, 230402926 is an apocalyptic number.

30402926 is a deficient number, since it is larger than the sum of its proper divisors (17601754).

30402926 is a wasteful number, since it uses less digits than its factorization.

30402926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800098.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 30402926 is about 5513.8848373901. The cubic root of 30402926 is about 312.1081629693.

The spelling of 30402926 in words is "thirty million, four hundred two thousand, nine hundred twenty-six".

Divisors: 1 2 19 38 800077 1600154 15201463 30402926