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213156112513 = 2831571479441
BaseRepresentation
bin1100011010000100011…
…0000010100010000001
3202101012012211110001211
43012201012002202001
511443020431100023
6241531135130121
721254131030111
oct3064106024201
9671165743054
10213156112513
1182443083263
1235389673941
131713cb50036
14a461487041
155828461a0d
hex31a1182881

213156112513 has 8 divisors (see below), whose sum is σ = 214045922016. Its totient is φ = 212267265600.

The previous prime is 213156112511. The next prime is 213156112523. The reversal of 213156112513 is 315211651312.

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 213156112513 - 21 = 213156112511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213156112511) 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, 204873 + ... + 684313.

It is an arithmetic number, because the mean of its divisors is an integer number (26755740252).

Almost surely, 2213156112513 is an apocalyptic number.

It is an amenable number.

213156112513 is a deficient number, since it is larger than the sum of its proper divisors (889809503).

213156112513 is a wasteful number, since it uses less digits than its factorization.

213156112513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481295.

The product of its digits is 5400, while the sum is 31.

Adding to 213156112513 its reverse (315211651312), we get a palindrome (528367763825).

The spelling of 213156112513 in words is "two hundred thirteen billion, one hundred fifty-six million, one hundred twelve thousand, five hundred thirteen".

Divisors: 1 283 1571 444593 479441 135681803 753201811 213156112513