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19342494 = 23219232459
BaseRepresentation
bin100100111001…
…0010010011110
31100101200220200
41021302102132
514422424434
61530324330
7323260053
oct111622236
940350820
1019342494
11aa11336
1265896a6
134013082
1427d702a
151a71199
hex127249e

19342494 has 48 divisors (see below), whose sum is σ = 46051200. Its totient is φ = 5840208.

The previous prime is 19342489. The next prime is 19342523. The reversal of 19342494 is 49424391.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6637 + ... + 9095.

It is an arithmetic number, because the mean of its divisors is an integer number (959400).

Almost surely, 219342494 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19342494, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23025600).

19342494 is an abundant number, since it is smaller than the sum of its proper divisors (26708706).

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

19342494 is a wasteful number, since it uses less digits than its factorization.

19342494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2509 (or 2506 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 19342494 is about 4398.0102319117. The cubic root of 19342494 is about 268.4339797939.

The spelling of 19342494 in words is "nineteen million, three hundred forty-two thousand, four hundred ninety-four".

Divisors: 1 2 3 6 9 18 19 23 38 46 57 69 114 138 171 207 342 414 437 874 1311 2459 2622 3933 4918 7377 7866 14754 22131 44262 46721 56557 93442 113114 140163 169671 280326 339342 420489 509013 840978 1018026 1074583 2149166 3223749 6447498 9671247 19342494