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212317053 = 31344312289
BaseRepresentation
bin11001010011110…
…11001101111101
3112210111211020120
430221323031331
5413323121203
633022405153
75155444104
oct1451731575
9483454216
10212317053
11a9935a43
125b1307b9
1334caa6c0
14202ab03b
151398db53
hexca7b37d

212317053 has 16 divisors (see below), whose sum is σ = 305578560. Its totient is φ = 130351104.

The previous prime is 212317043. The next prime is 212317057. The reversal of 212317053 is 350713212.

It is not a de Polignac number, because 212317053 - 29 = 212316541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212317057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11133 + ... + 23421.

It is an arithmetic number, because the mean of its divisors is an integer number (19098660).

Almost surely, 2212317053 is an apocalyptic number.

It is an amenable number.

212317053 is a deficient number, since it is larger than the sum of its proper divisors (93261507).

212317053 is a wasteful number, since it uses less digits than its factorization.

212317053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12748.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 212317053 is about 14571.1033556145. The cubic root of 212317053 is about 596.5702964664.

The spelling of 212317053 in words is "two hundred twelve million, three hundred seventeen thousand, fifty-three".

Divisors: 1 3 13 39 443 1329 5759 12289 17277 36867 159757 479271 5444027 16332081 70772351 212317053