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30613256206 = 2131177432931
BaseRepresentation
bin11100100000101100…
…010011100000001110
32221000111020112201221
4130200230103200032
51000143443144311
622021420153554
72132424245551
oct344054234016
987014215657
1030613256206
1111a8a426545
125b243988ba
132b6b4526b0
1416a5a82698
15be28b4671
hex720b1380e

30613256206 has 8 divisors (see below), whose sum is σ = 49452183144. Its totient is φ = 14129195160.

The previous prime is 30613256203. The next prime is 30613256227. The reversal of 30613256206 is 60265231603.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30613256203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588716440 + ... + 588716491.

It is an arithmetic number, because the mean of its divisors is an integer number (6181522893).

Almost surely, 230613256206 is an apocalyptic number.

30613256206 is a deficient number, since it is larger than the sum of its proper divisors (18838926938).

30613256206 is a wasteful number, since it uses less digits than its factorization.

30613256206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177432946.

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 30613256206 its reverse (60265231603), we get a palindrome (90878487809).

The spelling of 30613256206 in words is "thirty billion, six hundred thirteen million, two hundred fifty-six thousand, two hundred six".

Divisors: 1 2 13 26 1177432931 2354865862 15306628103 30613256206