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10212613613 = 31913200443
BaseRepresentation
bin10011000001011100…
…00001110111101101
3222100201211112011122
421200232001313231
5131403412113423
64405215430325
7511035532466
oct114056016755
928321745148
1010212613613
114370832844
121b902253a5
13c69a6cb47
146cc4a9d6d
153eb8a98c8
hex260b81ded

10212613613 has 4 divisors (see below), whose sum is σ = 10215817248. Its totient is φ = 10209409980.

The previous prime is 10212613603. The next prime is 10212613657. The reversal of 10212613613 is 31631621201.

10212613613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31631621201 = 125392522659.

It is a cyclic number.

It is not a de Polignac number, because 10212613613 - 216 = 10212548077 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 (10212613603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597031 + ... + 1603412.

It is an arithmetic number, because the mean of its divisors is an integer number (2553954312).

Almost surely, 210212613613 is an apocalyptic number.

It is an amenable number.

10212613613 is a deficient number, since it is larger than the sum of its proper divisors (3203635).

10212613613 is an equidigital number, since it uses as much as digits as its factorization.

10212613613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203634.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 10212613613 in words is "ten billion, two hundred twelve million, six hundred thirteen thousand, six hundred thirteen".

Divisors: 1 3191 3200443 10212613613