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193419 = 3221491
BaseRepresentation
bin101111001110001011
3100211022200
4233032023
522142134
64051243
71433622
oct571613
9324280
10193419
11122356
1293b23
136a065
14506b9
153c499
hex2f38b

193419 has 6 divisors (see below), whose sum is σ = 279396. Its totient is φ = 128940.

The previous prime is 193393. The next prime is 193423. The reversal of 193419 is 914391.

It is not a de Polignac number, because 193419 - 25 = 193387 is a prime.

It is a super-2 number, since 2×1934192 = 74821819122, which contains 22 as substring.

It is an Ulam number.

193419 is a lucky number.

It is a plaindrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 193392 and 193401.

It is not an unprimeable number, because it can be changed into a prime (193469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10737 + ... + 10754.

It is an arithmetic number, because the mean of its divisors is an integer number (46566).

2193419 is an apocalyptic number.

193419 is a deficient number, since it is larger than the sum of its proper divisors (85977).

193419 is a wasteful number, since it uses less digits than its factorization.

193419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21497 (or 21494 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 193419 is about 439.7942700855. The cubic root of 193419 is about 57.8317557966.

It can be divided in two parts, 1934 and 19, that added together give a triangular number (1953 = T62).

The spelling of 193419 in words is "one hundred ninety-three thousand, four hundred nineteen".

Divisors: 1 3 9 21491 64473 193419