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20376608 = 257175351
BaseRepresentation
bin100110110111…
…0110000100000
31102100020110012
41031232300200
520204022413
62004424052
7335125010
oct115566040
942306405
1020376608
111055827a
1269a8028
1342b5985
1429c5c40
151bc77a8
hex136ec20

20376608 has 48 divisors (see below), whose sum is σ = 48553344. Its totient is φ = 8217600.

The previous prime is 20376581. The next prime is 20376619. The reversal of 20376608 is 80667302.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1133 + ... + 6483.

It is an arithmetic number, because the mean of its divisors is an integer number (1011528).

Almost surely, 220376608 is an apocalyptic number.

20376608 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20376608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24276672).

20376608 is an abundant number, since it is smaller than the sum of its proper divisors (28176736).

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

20376608 is a wasteful number, since it uses less digits than its factorization.

20376608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5385 (or 5377 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 20376608 is about 4514.0456355691. The cubic root of 20376608 is about 273.1349634788.

The spelling of 20376608 in words is "twenty million, three hundred seventy-six thousand, six hundred eight".

Divisors: 1 2 4 7 8 14 16 17 28 32 34 56 68 112 119 136 224 238 272 476 544 952 1904 3808 5351 10702 21404 37457 42808 74914 85616 90967 149828 171232 181934 299656 363868 599312 636769 727736 1198624 1273538 1455472 2547076 2910944 5094152 10188304 20376608