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2212131031313 = 72087915135721
BaseRepresentation
bin100000001100001101010…
…010001100100100010001
321211110220012210202222112
4200030031102030210101
5242220421021000223
64412123341115105
7315551445343220
oct40141522144421
97743805722875
102212131031313
1178318332a3a5
122b8886258a95
131307abc05088
14790d3b3acb7
153c821456778
hex2030d48c911

2212131031313 has 8 divisors (see below), whose sum is σ = 2528271002880. Its totient is φ = 1896021372960.

The previous prime is 2212131031301. The next prime is 2212131031343. The reversal of 2212131031313 is 3131301312122.

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 2212131031313 - 26 = 2212131031249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2212131031343) 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, 7421708 + ... + 7714013.

It is an arithmetic number, because the mean of its divisors is an integer number (316033875360).

Almost surely, 22212131031313 is an apocalyptic number.

It is an amenable number.

2212131031313 is a deficient number, since it is larger than the sum of its proper divisors (316139971567).

2212131031313 is a wasteful number, since it uses less digits than its factorization.

2212131031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15156607.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2212131031313 its reverse (3131301312122), we get a palindrome (5343432343435).

The spelling of 2212131031313 in words is "two trillion, two hundred twelve billion, one hundred thirty-one million, thirty-one thousand, three hundred thirteen".

Divisors: 1 7 20879 146153 15135721 105950047 316018718759 2212131031313