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210131422 = 21371495147
BaseRepresentation
bin11001000011001…
…01100111011110
3112122101210010021
430201211213132
5412243201142
632503502354
75131042024
oct1441454736
9478353107
10210131422
11a8682936
125a4579ba
13346c3927
141dc9c714
15136ab267
hexc8659de

210131422 has 16 divisors (see below), whose sum is σ = 319690800. Its totient is φ = 103578688.

The previous prime is 210131417. The next prime is 210131459. The reversal of 210131422 is 224131012.

It is a junction number, because it is equal to n+sod(n) for n = 210131396 and 210131405.

It is a congruent number.

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, 38253 + ... + 43399.

It is an arithmetic number, because the mean of its divisors is an integer number (19980675).

Almost surely, 2210131422 is an apocalyptic number.

210131422 is a deficient number, since it is larger than the sum of its proper divisors (109559378).

210131422 is a wasteful number, since it uses less digits than its factorization.

210131422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 210131422 is about 14495.9105267658. The cubic root of 210131422 is about 594.5161634052.

Adding to 210131422 its reverse (224131012), we get a palindrome (434262434).

The spelling of 210131422 in words is "two hundred ten million, one hundred thirty-one thousand, four hundred twenty-two".

Divisors: 1 2 137 149 274 298 5147 10294 20413 40826 705139 766903 1410278 1533806 105065711 210131422