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20895396 = 2231978839
BaseRepresentation
bin100111110110…
…1011010100100
31110022121002120
41033231122210
520322123041
62023505540
7342415344
oct117553244
943277076
1020895396
1110882025
126bb82b0
134437b52
142abcd24
151c7b366
hex13ed6a4

20895396 has 24 divisors (see below), whose sum is σ = 49008960. Its totient is φ = 6928992.

The previous prime is 20895379. The next prime is 20895403. The reversal of 20895396 is 69359802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056 + ... + 6783.

It is an arithmetic number, because the mean of its divisors is an integer number (2042040).

Almost surely, 220895396 is an apocalyptic number.

It is an amenable number.

20895396 is an abundant number, since it is smaller than the sum of its proper divisors (28113564).

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

20895396 is a wasteful number, since it uses less digits than its factorization.

20895396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9043 (or 9041 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 20895396 is about 4571.1482146174. The cubic root of 20895396 is about 275.4335684130.

The spelling of 20895396 in words is "twenty million, eight hundred ninety-five thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 12 197 394 591 788 1182 2364 8839 17678 26517 35356 53034 106068 1741283 3482566 5223849 6965132 10447698 20895396