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19086093 = 3213163129
BaseRepresentation
bin100100011001…
…1101100001101
31022220200012100
41020303230031
514341223333
61521025313
7321141405
oct110635415
938820170
1019086093
11a856734
126485239
133c53460
14276b805
151a20213
hex1233b0d

19086093 has 12 divisors (see below), whose sum is σ = 29689660. Its totient is φ = 11745216.

The previous prime is 19086091. The next prime is 19086101. The reversal of 19086093 is 39068091.

It can be written as a sum of positive squares in 2 ways, for example, as 3617604 + 15468489 = 1902^2 + 3933^2 .

It is not a de Polignac number, because 19086093 - 21 = 19086091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19086091) 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, 81448 + ... + 81681.

Almost surely, 219086093 is an apocalyptic number.

19086093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

19086093 is a deficient number, since it is larger than the sum of its proper divisors (10603567).

19086093 is a wasteful number, since it uses less digits than its factorization.

19086093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163148 (or 163145 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 19086093 is about 4368.7633261599. The cubic root of 19086093 is about 267.2425939738.

It can be divided in two parts, 1908 and 6093, that added together give a triangular number (8001 = T126).

The spelling of 19086093 in words is "nineteen million, eighty-six thousand, ninety-three".

Divisors: 1 3 9 13 39 117 163129 489387 1468161 2120677 6362031 19086093