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30845417 = 195330631
BaseRepresentation
bin111010110101…
…0100111101001
32011001002221212
41311222213221
530344023132
63021042505
7523116221
oct165524751
964032855
1030845417
1116458689
12a3b6435
13650ca35
14414d081
152a945b2
hex1d6a9e9

30845417 has 8 divisors (see below), whose sum is σ = 33082560. Its totient is φ = 28669680.

The previous prime is 30845411. The next prime is 30845447. The reversal of 30845417 is 71454803.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30845417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30845411) 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, 14309 + ... + 16322.

It is an arithmetic number, because the mean of its divisors is an integer number (4135320).

Almost surely, 230845417 is an apocalyptic number.

It is an amenable number.

30845417 is a deficient number, since it is larger than the sum of its proper divisors (2237143).

30845417 is a wasteful number, since it uses less digits than its factorization.

30845417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30703.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 30845417 is about 5553.8650505751. The cubic root of 30845417 is about 313.6150400223.

The spelling of 30845417 in words is "thirty million, eight hundred forty-five thousand, four hundred seventeen".

Divisors: 1 19 53 1007 30631 581989 1623443 30845417