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20379468 = 2231698289
BaseRepresentation
bin100110110111…
…1011101001100
31102100101101010
41031233131030
520204120333
62004445220
7335136234
oct115573514
942311333
1020379468
111055a43a
1269a9810
1342b7075
1429c6cc4
151bc8563
hex136f74c

20379468 has 12 divisors (see below), whose sum is σ = 47552120. Its totient is φ = 6793152.

The previous prime is 20379467. The next prime is 20379479. The reversal of 20379468 is 86497302.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (20379461) 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, 849133 + ... + 849156.

Almost surely, 220379468 is an apocalyptic number.

It is an amenable number.

20379468 is an abundant number, since it is smaller than the sum of its proper divisors (27172652).

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

20379468 is a wasteful number, since it uses less digits than its factorization.

20379468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698296 (or 1698294 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 20379468 is about 4514.3624134533. The cubic root of 20379468 is about 273.1477416843.

The spelling of 20379468 in words is "twenty million, three hundred seventy-nine thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 1698289 3396578 5094867 6793156 10189734 20379468