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19378341 = 322153149
BaseRepresentation
bin100100111101…
…1000010100101
31100110112002100
41021323002211
514430101331
61531202313
7323466423
oct111730245
940415070
1019378341
11aa36264
1265a6399
134026498
142806113
151a7bae6
hex127b0a5

19378341 has 6 divisors (see below), whose sum is σ = 27990950. Its totient is φ = 12918888.

The previous prime is 19378339. The next prime is 19378349. The reversal of 19378341 is 14387391.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15634116 + 3744225 = 3954^2 + 1935^2 .

It is not a de Polignac number, because 19378341 - 21 = 19378339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19378296 and 19378305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19378349) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1076566 + ... + 1076583.

Almost surely, 219378341 is an apocalyptic number.

It is an amenable number.

19378341 is a deficient number, since it is larger than the sum of its proper divisors (8612609).

19378341 is a wasteful number, since it uses less digits than its factorization.

19378341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153155 (or 2153152 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 19378341 is about 4402.0837111532. The cubic root of 19378341 is about 268.5997049681.

The spelling of 19378341 in words is "nineteen million, three hundred seventy-eight thousand, three hundred forty-one".

Divisors: 1 3 9 2153149 6459447 19378341