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212431022999 = 13139117560057
BaseRepresentation
bin1100010111010111100…
…0000010101110010111
3202022022200110002020122
43011311320002232113
511440024320213444
6241331154022155
721230144621366
oct3056570025627
9668280402218
10212431022999
1182100857828
123520687795b
1317055867aa0
14a3d305b7dd
1557d49854ee
hex3175e02b97

212431022999 has 8 divisors (see below), whose sum is σ = 230417713680. Its totient is φ = 194679452736.

The previous prime is 212431022939. The next prime is 212431023011. The reversal of 212431022999 is 999220134212.

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

It is a cyclic number.

It is not a de Polignac number, because 212431022999 - 28 = 212431022743 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 (212431022939) 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, 58778222 + ... + 58781835.

It is an arithmetic number, because the mean of its divisors is an integer number (28802214210).

Almost surely, 2212431022999 is an apocalyptic number.

212431022999 is a deficient number, since it is larger than the sum of its proper divisors (17986690681).

212431022999 is a wasteful number, since it uses less digits than its factorization.

212431022999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117560209.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 212431022999 in words is "two hundred twelve billion, four hundred thirty-one million, twenty-two thousand, nine hundred ninety-nine".

Divisors: 1 13 139 1807 117560057 1528280741 16340847923 212431022999