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19471396 = 227695407
BaseRepresentation
bin100101001000…
…1110000100100
31100122020201211
41022101300210
514441041041
61533201204
7324334630
oct112216044
940566654
1019471396
11aa9a16a
126630204
134059949
14282bdc0
151a99481
hex1291c24

19471396 has 12 divisors (see below), whose sum is σ = 38942848. Its totient is φ = 8344872.

The previous prime is 19471393. The next prime is 19471411. The reversal of 19471396 is 69317491.

19471396 is an admirable number.

It is a hoax number, since the sum of its digits (40) 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 (19471391) 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, 347676 + ... + 347731.

Almost surely, 219471396 is an apocalyptic number.

It is an amenable number.

19471396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19471396 is a wasteful number, since it uses less digits than its factorization.

19471396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695418 (or 695416 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 19471396 is about 4412.6404793502. The cubic root of 19471396 is about 269.0289581554.

The spelling of 19471396 in words is "nineteen million, four hundred seventy-one thousand, three hundred ninety-six".

Divisors: 1 2 4 7 14 28 695407 1390814 2781628 4867849 9735698 19471396