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BaseRepresentation
bin111011011000111
31112201012
413123013
51433112
6352435
7154436
oct73307
945635
1030407
1120933
121571b
1310ac0
14b11d
159022
hex76c7

30407 has 4 divisors (see below), whose sum is σ = 32760. Its totient is φ = 28056.

The previous prime is 30403. The next prime is 30427. The reversal of 30407 is 70403.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70403 = 233061.

It is a cyclic number.

It is not a de Polignac number, because 30407 - 22 = 30403 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30391 and 30400.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 30407.

It is not an unprimeable number, because it can be changed into a prime (30403) 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, 1157 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (8190).

230407 is an apocalyptic number.

30407 is a deficient number, since it is larger than the sum of its proper divisors (2353).

30407 is a wasteful number, since it uses less digits than its factorization.

30407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352.

The product of its (nonzero) digits is 84, while the sum is 14.

The square root of 30407 is about 174.3760304629. The cubic root of 30407 is about 31.2122103205.

The spelling of 30407 in words is "thirty thousand, four hundred seven".

Divisors: 1 13 2339 30407