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19061361 = 3211192539
BaseRepresentation
bin100100010110…
…1101001110001
31022212102021100
41020231221301
514334430421
61520315013
7321006324
oct110555161
938772240
1019061361
11a83a0a0
126472a69
133c45117
1427627bb
151a17c26
hex122da71

19061361 has 12 divisors (see below), whose sum is σ = 30036240. Its totient is φ = 11552280.

The previous prime is 19061347. The next prime is 19061363. The reversal of 19061361 is 16316091.

It is not a de Polignac number, because 19061361 - 221 = 16964209 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19061363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96171 + ... + 96368.

It is an arithmetic number, because the mean of its divisors is an integer number (2503020).

Almost surely, 219061361 is an apocalyptic number.

19061361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19061361 is a deficient number, since it is larger than the sum of its proper divisors (10974879).

19061361 is a wasteful number, since it uses less digits than its factorization.

19061361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192556 (or 192553 counting only the distinct ones).

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

The square root of 19061361 is about 4365.9318592942. The cubic root of 19061361 is about 267.1271119706.

The spelling of 19061361 in words is "nineteen million, sixty-one thousand, three hundred sixty-one".

Divisors: 1 3 9 11 33 99 192539 577617 1732851 2117929 6353787 19061361