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201431122 = 21940113219
BaseRepresentation
bin11000000000110…
…01100001010010
3112001000202112221
430000121201102
5403031243442
631553211254
74664064514
oct1400314122
9461022487
10201431122
11a3780202
1257560b2a
1332968819
141ca75bb4
1512a3d467
hexc019852

201431122 has 16 divisors (see below), whose sum is σ = 318866400. Its totient is φ = 95169600.

The previous prime is 201431117. The next prime is 201431137. The reversal of 201431122 is 221134102.

201431122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201431096 and 201431105.

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, 8629 + ... + 21847.

It is an arithmetic number, because the mean of its divisors is an integer number (19929150).

Almost surely, 2201431122 is an apocalyptic number.

201431122 is a deficient number, since it is larger than the sum of its proper divisors (117435278).

201431122 is a wasteful number, since it uses less digits than its factorization.

201431122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13641.

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

The square root of 201431122 is about 14192.6432351412. The cubic root of 201431122 is about 586.1951091158.

Adding to 201431122 its reverse (221134102), we get a palindrome (422565224).

The spelling of 201431122 in words is "two hundred one million, four hundred thirty-one thousand, one hundred twenty-two".

Divisors: 1 2 19 38 401 802 7619 13219 15238 26438 251161 502322 5300819 10601638 100715561 201431122