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3123210313013 = 74191911841421
BaseRepresentation
bin101101011100101101110…
…101110101110100110101
3102001120112220012200111112
4231130231311311310311
5402132313320004023
610350441044044405
7441434030431460
oct55345565656465
912046486180445
103123210313013
11aa460088854a
12425370993705
13198695b56c6b
14ab2427502d7
1556396483478
hex2d72dd75d35

3123210313013 has 16 divisors (see below), whose sum is σ = 3660420368640. Its totient is φ = 2608901654400.

The previous prime is 3123210313009. The next prime is 3123210313031. The reversal of 3123210313013 is 3103130123213.

It is a cyclic number.

It is not a de Polignac number, because 3123210313013 - 22 = 3123210313009 is a prime.

It is a super-2 number, since 2×31232103130132 (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3123210313013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123210313513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5656958 + ... + 6184463.

It is an arithmetic number, because the mean of its divisors is an integer number (228776273040).

Almost surely, 23123210313013 is an apocalyptic number.

It is an amenable number.

3123210313013 is a deficient number, since it is larger than the sum of its proper divisors (537210055627).

3123210313013 is a wasteful number, since it uses less digits than its factorization.

3123210313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11842388.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 3123210313013 its reverse (3103130123213), we get a palindrome (6226340436226).

The spelling of 3123210313013 in words is "three trillion, one hundred twenty-three billion, two hundred ten million, three hundred thirteen thousand, thirteen".

Divisors: 1 7 41 287 919 6433 37679 263753 11841421 82889947 485498261 3398487827 10882265899 76175861293 446172901859 3123210313013