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30970807 = 74919011
BaseRepresentation
bin111011000100…
…1001110110111
32011021110221221
41312021032313
530412031212
63023451211
7524150620
oct166111667
964243857
1030970807
111653390a
12a456b07
136554b2a
144182a47
152abb807
hex1d893b7

30970807 has 8 divisors (see below), whose sum is σ = 35471232. Its totient is φ = 26489400.

The previous prime is 30970783. The next prime is 30970837. The reversal of 30970807 is 70807903.

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

It is not a de Polignac number, because 30970807 - 27 = 30970679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30970837) 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, 1069 + ... + 7942.

It is an arithmetic number, because the mean of its divisors is an integer number (4433904).

Almost surely, 230970807 is an apocalyptic number.

30970807 is a deficient number, since it is larger than the sum of its proper divisors (4500425).

30970807 is an equidigital number, since it uses as much as digits as its factorization.

30970807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9509.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 30970807 is about 5565.1421365496. The cubic root of 30970807 is about 314.0394253172.

The spelling of 30970807 in words is "thirty million, nine hundred seventy thousand, eight hundred seven".

Divisors: 1 7 491 3437 9011 63077 4424401 30970807