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20296320 = 273511312
BaseRepresentation
bin100110101101…
…1001010000000
31102012011022120
41031123022000
520143440240
62003004240
7334341642
oct115331200
942164276
1020296320
1110502a20
126969680
134288275
1429a4892
hex135b280

20296320 has 192 divisors, whose sum is σ = 72925920. Its totient is φ = 4761600.

The previous prime is 20296291. The next prime is 20296337. The reversal of 20296320 is 2369202.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 654705 + ... + 654735.

Almost surely, 220296320 is an apocalyptic number.

20296320 is a gapful number since it is divisible by the number (20) 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 20296320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36462960).

20296320 is an abundant number, since it is smaller than the sum of its proper divisors (52629600).

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

20296320 is a wasteful number, since it uses less digits than its factorization.

20296320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 52 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20296320 is about 4505.1437268971. The cubic root of 20296320 is about 272.7757554211.

The spelling of 20296320 in words is "twenty million, two hundred ninety-six thousand, three hundred twenty".