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19084131 = 3211434483
BaseRepresentation
bin100100011001…
…1001101100011
31022220120111200
41020303031203
514341143011
61521012243
7321132603
oct110631543
938816450
1019084131
11a855210
126484083
133c525b1
14276ac03
151a1e856
hex1233363

19084131 has 24 divisors (see below), whose sum is σ = 30778176. Its totient is φ = 11294640.

The previous prime is 19084123. The next prime is 19084133. The reversal of 19084131 is 13148091.

It is not a de Polignac number, because 19084131 - 23 = 19084123 is a prime.

It is a super-2 number, since 2×190841312 = 728408112050322, which contains 22 as substring.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 19084095 and 19084104.

It is not an unprimeable number, because it can be changed into a prime (19084133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2016 + ... + 6498.

It is an arithmetic number, because the mean of its divisors is an integer number (1282424).

Almost surely, 219084131 is an apocalyptic number.

19084131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19084131 is a deficient number, since it is larger than the sum of its proper divisors (11694045).

19084131 is a wasteful number, since it uses less digits than its factorization.

19084131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543 (or 4540 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 19084131 is about 4368.5387717176. The cubic root of 19084131 is about 267.2334363822.

The spelling of 19084131 in words is "nineteen million, eighty-four thousand, one hundred thirty-one".

Divisors: 1 3 9 11 33 43 99 129 387 473 1419 4257 4483 13449 40347 49313 147939 192769 443817 578307 1734921 2120459 6361377 19084131