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201154313 = 474279879
BaseRepresentation
bin10111111110101…
…01111100001001
3112000111200211202
423333111330021
5402443414223
631543233545
74661532503
oct1377257411
9460450752
10201154313
11a3601238
12574488b5
133289c829
141ca02d73
15129d6428
hexbfd5f09

201154313 has 4 divisors (see below), whose sum is σ = 205434240. Its totient is φ = 196874388.

The previous prime is 201154309. The next prime is 201154333. The reversal of 201154313 is 313451102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313451102 = 2156725551.

It is a cyclic number.

It is not a de Polignac number, because 201154313 - 22 = 201154309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201154333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2139893 + ... + 2139986.

It is an arithmetic number, because the mean of its divisors is an integer number (51358560).

Almost surely, 2201154313 is an apocalyptic number.

It is an amenable number.

201154313 is a deficient number, since it is larger than the sum of its proper divisors (4279927).

201154313 is an equidigital number, since it uses as much as digits as its factorization.

201154313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279926.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 201154313 is about 14182.8880345295. Note that the first 3 decimals coincide. The cubic root of 201154313 is about 585.9264672999.

The spelling of 201154313 in words is "two hundred one million, one hundred fifty-four thousand, three hundred thirteen".

Divisors: 1 47 4279879 201154313