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252271461 = 31327123869
BaseRepresentation
bin11110000100101…
…01101101100101
3122120200201101110
433002111231211
51004040141321
641011015233
76152162211
oct1702255545
9576621343
10252271461
1111a445312
127059a519
1340359570
142570b941
1517232176
hexf095b65

252271461 has 16 divisors (see below), whose sum is σ = 363587840. Its totient is φ = 154664640.

The previous prime is 252271451. The next prime is 252271469. The reversal of 252271461 is 164172252.

It is not a de Polignac number, because 252271461 - 27 = 252271333 is a prime.

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 (252271469) 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, 1366 + ... + 22503.

It is an arithmetic number, because the mean of its divisors is an integer number (22724240).

Almost surely, 2252271461 is an apocalyptic number.

It is an amenable number.

252271461 is a deficient number, since it is larger than the sum of its proper divisors (111316379).

252271461 is a wasteful number, since it uses less digits than its factorization.

252271461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24156.

The product of its digits is 6720, while the sum is 30.

The square root of 252271461 is about 15883.0557828146. The cubic root of 252271461 is about 631.8626833072.

The spelling of 252271461 in words is "two hundred fifty-two million, two hundred seventy-one thousand, four hundred sixty-one".

Divisors: 1 3 13 39 271 813 3523 10569 23869 71607 310297 930891 6468499 19405497 84090487 252271461