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19112112093 = 361313333667
BaseRepresentation
bin10001110011001010…
…111010111111011101
31211022221210220000110
4101303022322333131
5303120200041333
612440250520233
71244421162264
oct216312727735
954287726013
1019112112093
11811831a768
123854736079
131a57762289
14cd43dd5db
1576cd33063
hex4732bafdd

19112112093 has 16 divisors (see below), whose sum is σ = 25983394496. Its totient is φ = 12492455040.

The previous prime is 19112112083. The next prime is 19112112143. The reversal of 19112112093 is 39021121191.

It is not a de Polignac number, because 19112112093 - 26 = 19112112029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19112112093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19112112013) 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, 109555 + ... + 224112.

It is an arithmetic number, because the mean of its divisors is an integer number (1623962156).

Almost surely, 219112112093 is an apocalyptic number.

It is an amenable number.

19112112093 is a deficient number, since it is larger than the sum of its proper divisors (6871282403).

19112112093 is a wasteful number, since it uses less digits than its factorization.

19112112093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334044.

The product of its (nonzero) digits is 972, while the sum is 30.

The spelling of 19112112093 in words is "nineteen billion, one hundred twelve million, one hundred twelve thousand, ninety-three".

Divisors: 1 3 61 183 313 939 19093 57279 333667 1001001 20353687 61061061 104437771 313313313 6370704031 19112112093