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20955295 = 57159029
BaseRepresentation
bin100111111110…
…0000010011111
31110102122021001
41033330002133
520331032140
62025051131
7343055104
oct117740237
943378231
1020955295
1110913029
127026aa7
1344591aa
142ad6aab
151c8de9a
hex13fc09f

20955295 has 8 divisors (see below), whose sum is σ = 25500960. Its totient is φ = 16527840.

The previous prime is 20955293. The next prime is 20955331. The reversal of 20955295 is 59255902.

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

It is not a de Polignac number, because 20955295 - 21 = 20955293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20955293) 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, 29160 + ... + 29869.

It is an arithmetic number, because the mean of its divisors is an integer number (3187620).

Almost surely, 220955295 is an apocalyptic number.

20955295 is a deficient number, since it is larger than the sum of its proper divisors (4545665).

20955295 is an equidigital number, since it uses as much as digits as its factorization.

20955295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59105.

The product of its (nonzero) digits is 40500, while the sum is 37.

The square root of 20955295 is about 4577.6953808658. The cubic root of 20955295 is about 275.6965044162.

The spelling of 20955295 in words is "twenty million, nine hundred fifty-five thousand, two hundred ninety-five".

Divisors: 1 5 71 355 59029 295145 4191059 20955295