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30712011 = 311930667
BaseRepresentation
bin111010100101…
…0000011001011
32010210022221220
41311022003023
530330241021
63014133123
7522022251
oct165120313
963708856
1030712011
1116377430
12a3511a3
1364940b5
1441165d1
152a69cc6
hex1d4a0cb

30712011 has 8 divisors (see below), whose sum is σ = 44672064. Its totient is φ = 18613320.

The previous prime is 30712007. The next prime is 30712021. The reversal of 30712011 is 11021703.

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

It is not a de Polignac number, because 30712011 - 22 = 30712007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30712021) 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, 465301 + ... + 465366.

It is an arithmetic number, because the mean of its divisors is an integer number (5584008).

Almost surely, 230712011 is an apocalyptic number.

30712011 is a deficient number, since it is larger than the sum of its proper divisors (13960053).

30712011 is a wasteful number, since it uses less digits than its factorization.

30712011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930681.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 30712011 is about 5541.8418418428. The cubic root of 30712011 is about 313.1622597404.

Adding to 30712011 its reverse (11021703), we get a palindrome (41733714).

The spelling of 30712011 in words is "thirty million, seven hundred twelve thousand, eleven".

Divisors: 1 3 11 33 930667 2792001 10237337 30712011