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213115491192 = 23319146491163
BaseRepresentation
bin1100011001111010101…
…1000101001101111000
3202101002101101200002110
43012132223011031320
511442430031204232
6241523124332320
721253125533442
oct3063653051570
9671071350073
10213115491192
118242215891a
1235377b440a0
13171345c9756
14a459d11492
155824adaacc
hex319eac5378

213115491192 has 32 divisors (see below), whose sum is σ = 535578209280. Its totient is φ = 70666566240.

The previous prime is 213115491179. The next prime is 213115491203. The reversal of 213115491192 is 291194511312.

It is a self number, because there is not a number n which added to its sum of digits gives 213115491192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23240998 + ... + 23250165.

It is an arithmetic number, because the mean of its divisors is an integer number (16736819040).

Almost surely, 2213115491192 is an apocalyptic number.

It is an amenable number.

213115491192 is an abundant number, since it is smaller than the sum of its proper divisors (322462718088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213115491192 is a wasteful number, since it uses less digits than its factorization.

213115491192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46491363 (or 46491359 counting only the distinct ones).

The product of its digits is 19440, while the sum is 39.

The spelling of 213115491192 in words is "two hundred thirteen billion, one hundred fifteen million, four hundred ninety-one thousand, one hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 191 382 573 764 1146 1528 2292 4584 46491163 92982326 139473489 185964652 278946978 371929304 557893956 1115787912 8879812133 17759624266 26639436399 35519248532 53278872798 71038497064 106557745596 213115491192