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30426307 = 291049183
BaseRepresentation
bin111010000010…
…0010011000011
32010020211001021
41310010103003
530242120212
63004050311
7516422302
oct164042303
963224037
1030426307
11161a180a
12a233997
1363c4042
144080439
152a10307
hex1d044c3

30426307 has 4 divisors (see below), whose sum is σ = 31475520. Its totient is φ = 29377096.

The previous prime is 30426271. The next prime is 30426313. The reversal of 30426307 is 70362403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70362403 = 166742209.

It is a cyclic number.

It is not a de Polignac number, because 30426307 - 211 = 30424259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30426317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 524563 + ... + 524620.

It is an arithmetic number, because the mean of its divisors is an integer number (7868880).

Almost surely, 230426307 is an apocalyptic number.

30426307 is a deficient number, since it is larger than the sum of its proper divisors (1049213).

30426307 is a wasteful number, since it uses less digits than its factorization.

30426307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049212.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 30426307 is about 5516.0046229132. The cubic root of 30426307 is about 312.1881501291.

The spelling of 30426307 in words is "thirty million, four hundred twenty-six thousand, three hundred seven".

Divisors: 1 29 1049183 30426307