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30255407 = 713332477
BaseRepresentation
bin111001101101…
…0100100101111
32002221010121122
41303122210233
530221133112
63000251155
7515111120
oct163324457
962833548
1030255407
1116095376
12a170abb
136364310
144038047
1529c9872
hex1cda92f

30255407 has 8 divisors (see below), whose sum is σ = 37237536. Its totient is φ = 23938272.

The previous prime is 30255403. The next prime is 30255413. The reversal of 30255407 is 70455203.

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

It is a cyclic number.

It is not a de Polignac number, because 30255407 - 22 = 30255403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30255403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166148 + ... + 166329.

It is an arithmetic number, because the mean of its divisors is an integer number (4654692).

Almost surely, 230255407 is an apocalyptic number.

30255407 is a deficient number, since it is larger than the sum of its proper divisors (6982129).

30255407 is a wasteful number, since it uses less digits than its factorization.

30255407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332497.

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 30255407 is about 5500.4915234913. The cubic root of 30255407 is about 311.6025476811.

The spelling of 30255407 in words is "thirty million, two hundred fifty-five thousand, four hundred seven".

Divisors: 1 7 13 91 332477 2327339 4322201 30255407