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201525141 = 3312166937
BaseRepresentation
bin11000000001100…
…00011110010101
3112001012112112010
430000300132111
5403042301031
631555214433
74664635566
oct1400603625
9461175463
10201525141
11a3834904
12575a7419
133299c55c
141ca9c16d
1512a5b246
hexc030795

201525141 has 8 divisors (see below), whose sum is σ = 277368064. Its totient is φ = 130016160.

The previous prime is 201525131. The next prime is 201525161. The reversal of 201525141 is 141525102.

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

It is not a de Polignac number, because 201525141 - 25 = 201525109 is a prime.

It is a super-2 number, since 2×2015251412 = 81224764910139762, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201525131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1083376 + ... + 1083561.

It is an arithmetic number, because the mean of its divisors is an integer number (34671008).

Almost surely, 2201525141 is an apocalyptic number.

It is an amenable number.

201525141 is a deficient number, since it is larger than the sum of its proper divisors (75842923).

201525141 is a wasteful number, since it uses less digits than its factorization.

201525141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166971.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 201525141 is about 14195.9550929129. The cubic root of 201525141 is about 586.2862981118.

The spelling of 201525141 in words is "two hundred one million, five hundred twenty-five thousand, one hundred forty-one".

Divisors: 1 3 31 93 2166937 6500811 67175047 201525141