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30236906 = 272159779
BaseRepresentation
bin111001101011…
…0000011101010
32002220012020102
41303112003222
530220040111
63000025402
7515003150
oct163260352
962805212
1030236906
1116082487
12a162262
136358a7b
1440313d0
1529c413b
hex1cd60ea

30236906 has 8 divisors (see below), whose sum is σ = 51834720. Its totient is φ = 12958668.

The previous prime is 30236903. The next prime is 30236909. The reversal of 30236906 is 60963203.

It is an interprime number because it is at equal distance from previous prime (30236903) and next prime (30236909).

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30236903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079876 + ... + 1079903.

It is an arithmetic number, because the mean of its divisors is an integer number (6479340).

Almost surely, 230236906 is an apocalyptic number.

30236906 is a deficient number, since it is larger than the sum of its proper divisors (21597814).

30236906 is a wasteful number, since it uses less digits than its factorization.

30236906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159788.

The product of its (nonzero) digits is 5832, while the sum is 29.

The square root of 30236906 is about 5498.8095075207. The cubic root of 30236906 is about 311.5390203672.

The spelling of 30236906 in words is "thirty million, two hundred thirty-six thousand, nine hundred six".

Divisors: 1 2 7 14 2159779 4319558 15118453 30236906