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19196047 = 133494231
BaseRepresentation
bin100100100111…
…0100010001111
31100010021000201
41021032202033
514403233142
61523234331
7322110103
oct111164217
940107021
1019196047
11a921302
1265189a7
133c91510
142799903
151a42ab7
hex124e88f

19196047 has 8 divisors (see below), whose sum is σ = 20736800. Its totient is φ = 17664480.

The previous prime is 19196041. The next prime is 19196059. The reversal of 19196047 is 74069191.

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 19196047 - 219 = 18671759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19195997 and 19196015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19196041) 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, 2422 + ... + 6652.

It is an arithmetic number, because the mean of its divisors is an integer number (2592100).

Almost surely, 219196047 is an apocalyptic number.

19196047 is a deficient number, since it is larger than the sum of its proper divisors (1540753).

19196047 is a wasteful number, since it uses less digits than its factorization.

19196047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4593.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 19196047 is about 4381.3293644738. The cubic root of 19196047 is about 267.7548019073.

The spelling of 19196047 in words is "nineteen million, one hundred ninety-six thousand, forty-seven".

Divisors: 1 13 349 4231 4537 55003 1476619 19196047