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19197050 = 252383941
BaseRepresentation
bin100100100111…
…0110001111010
31100010022101212
41021032301322
514403301200
61523243122
7322113035
oct111166172
940108355
1019197050
11a922034
1265194a2
133c91b02
14279a01c
151a43035
hex124ec7a

19197050 has 12 divisors (see below), whose sum is σ = 35706606. Its totient is φ = 7678800.

The previous prime is 19197023. The next prime is 19197071. The reversal of 19197050 is 5079191.

It can be written as a sum of positive squares in 3 ways, for example, as 11485321 + 7711729 = 3389^2 + 2777^2 .

It is a junction number, because it is equal to n+sod(n) for n = 19196998 and 19197016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191921 + ... + 192020.

Almost surely, 219197050 is an apocalyptic number.

19197050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19197050 is a deficient number, since it is larger than the sum of its proper divisors (16509556).

19197050 is a wasteful number, since it uses less digits than its factorization.

19197050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383953 (or 383948 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 19197050 is about 4381.4438259551. The cubic root of 19197050 is about 267.7594652526.

The spelling of 19197050 in words is "nineteen million, one hundred ninety-seven thousand, fifty".

Divisors: 1 2 5 10 25 50 383941 767882 1919705 3839410 9598525 19197050