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30428126 = 223661481
BaseRepresentation
bin111010000010…
…0101111011110
32010020220112122
41310010233132
530242200001
63004102542
7516430511
oct164045736
963226478
1030428126
11161a3113
12a234a52
1363c4b11
144080d78
152a10b1b
hex1d04bde

30428126 has 8 divisors (see below), whose sum is σ = 47626704. Its totient is φ = 14552560.

The previous prime is 30428119. The next prime is 30428137. The reversal of 30428126 is 62182403.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 30428095 and 30428104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330695 + ... + 330786.

It is an arithmetic number, because the mean of its divisors is an integer number (5953338).

Almost surely, 230428126 is an apocalyptic number.

30428126 is a deficient number, since it is larger than the sum of its proper divisors (17198578).

30428126 is a wasteful number, since it uses less digits than its factorization.

30428126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661506.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 30428126 is about 5516.1695042847. The cubic root of 30428126 is about 312.1943712689.

The spelling of 30428126 in words is "thirty million, four hundred twenty-eight thousand, one hundred twenty-six".

Divisors: 1 2 23 46 661481 1322962 15214063 30428126