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275085252 = 223213587789
BaseRepresentation
bin10000011001010…
…111011111000100
3201011121210000200
4100121113133010
51030410212002
643144010500
76550120551
oct2031273704
9634553020
10275085252
11131307692
1278160a30
1344cb6650
1428769a28
151923bb1c
hex106577c4

275085252 has 36 divisors (see below), whose sum is σ = 748844460. Its totient is φ = 84641472.

The previous prime is 275085247. The next prime is 275085341. The reversal of 275085252 is 252580572.

It can be written as a sum of positive squares in 2 ways, for example, as 150405696 + 124679556 = 12264^2 + 11166^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 293427 + ... + 294362.

It is an arithmetic number, because the mean of its divisors is an integer number (20801235).

Almost surely, 2275085252 is an apocalyptic number.

It is an amenable number.

275085252 is an abundant number, since it is smaller than the sum of its proper divisors (473759208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

275085252 is a wasteful number, since it uses less digits than its factorization.

275085252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587812 (or 587807 counting only the distinct ones).

The product of its (nonzero) digits is 56000, while the sum is 36.

The square root of 275085252 is about 16585.6941971085. The cubic root of 275085252 is about 650.3629152841.

The spelling of 275085252 in words is "two hundred seventy-five million, eighty-five thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 78 117 156 234 468 587789 1175578 1763367 2351156 3526734 5290101 7053468 7641257 10580202 15282514 21160404 22923771 30565028 45847542 68771313 91695084 137542626 275085252