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211253050 = 25217248533
BaseRepresentation
bin11001001011101…
…11011100111010
3112201111202201001
430211313130322
5413040044200
632543515214
75143423051
oct1445673472
9481452631
10211253050
11a92795a8
125a8b8b0a
13349c7308
14200b1398
151382d76a
hexc97773a

211253050 has 24 divisors (see below), whose sum is σ = 416045916. Its totient is φ = 79530240.

The previous prime is 211252973. The next prime is 211253057. The reversal of 211253050 is 50352112.

It can be written as a sum of positive squares in 6 ways, for example, as 174055249 + 37197801 = 13193^2 + 6099^2 .

It is a super-2 number, since 2×2112530502 = 89255702268605000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211253057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123417 + ... + 125116.

Almost surely, 2211253050 is an apocalyptic number.

211253050 is a deficient number, since it is larger than the sum of its proper divisors (204792866).

211253050 is a wasteful number, since it uses less digits than its factorization.

211253050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248562 (or 248557 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 211253050 is about 14534.5467765596. The cubic root of 211253050 is about 595.5720788347.

The spelling of 211253050 in words is "two hundred eleven million, two hundred fifty-three thousand, fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 248533 497066 1242665 2485330 4225061 6213325 8450122 12426650 21125305 42250610 105626525 211253050