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20084395 = 517236287
BaseRepresentation
bin100110010011…
…1011010101011
31101210101121111
41030213122223
520120200040
61554251151
7332500042
oct114473253
941711544
1020084395
1110378781
126886ab7
134212976
14294b559
151b6adea
hex13276ab

20084395 has 8 divisors (see below), whose sum is σ = 25519104. Its totient is φ = 15122304.

The previous prime is 20084381. The next prime is 20084399. The reversal of 20084395 is 59348002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20084395 - 215 = 20051627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20084399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118059 + ... + 118228.

It is an arithmetic number, because the mean of its divisors is an integer number (3189888).

Almost surely, 220084395 is an apocalyptic number.

20084395 is a deficient number, since it is larger than the sum of its proper divisors (5434709).

20084395 is a wasteful number, since it uses less digits than its factorization.

20084395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236309.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20084395 is about 4481.5616697754. The cubic root of 20084395 is about 271.8230313317.

The spelling of 20084395 in words is "twenty million, eighty-four thousand, three hundred ninety-five".

Divisors: 1 5 17 85 236287 1181435 4016879 20084395