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19093136 = 242941149
BaseRepresentation
bin100100011010…
…1011010010000
31022221000212012
41020311122100
514341440021
61521122052
7321201056
oct110653220
938830765
1019093136
11a860a57
126489328
133c5671a
1427701d6
151a2235b
hex1235690

19093136 has 20 divisors (see below), whose sum is σ = 38269500. Its totient is φ = 9217152.

The previous prime is 19093133. The next prime is 19093153. The reversal of 19093136 is 63139091.

It can be written as a sum of positive squares in 2 ways, for example, as 5550736 + 13542400 = 2356^2 + 3680^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (19093133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20111 + ... + 21038.

It is an arithmetic number, because the mean of its divisors is an integer number (1913475).

Almost surely, 219093136 is an apocalyptic number.

19093136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19093136 is an abundant number, since it is smaller than the sum of its proper divisors (19176364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19093136 is a wasteful number, since it uses less digits than its factorization.

19093136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41186 (or 41180 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 19093136 is about 4369.5693151614. The cubic root of 19093136 is about 267.2754618517.

The spelling of 19093136 in words is "nineteen million, ninety-three thousand, one hundred thirty-six".

Divisors: 1 2 4 8 16 29 58 116 232 464 41149 82298 164596 329192 658384 1193321 2386642 4773284 9546568 19093136