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211135052 = 221811931511
BaseRepresentation
bin11001001010110…
…10101001001100
3112201021202211202
430211122221030
5413022310202
632541205032
75142422042
oct1445325114
9481252752
10211135052
11a91a8987
125a860778
13349856ab
1420080392
1513808802
hexc95aa4c

211135052 has 24 divisors (see below), whose sum is σ = 373699872. Its totient is φ = 104371200.

The previous prime is 211135037. The next prime is 211135063. The reversal of 211135052 is 250531112.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138977 + ... + 140487.

It is an arithmetic number, because the mean of its divisors is an integer number (15570828).

Almost surely, 2211135052 is an apocalyptic number.

It is an amenable number.

211135052 is a deficient number, since it is larger than the sum of its proper divisors (162564820).

211135052 is a wasteful number, since it uses less digits than its factorization.

211135052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1889 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 211135052 is about 14530.4869842686. The cubic root of 211135052 is about 595.4611701357.

Adding to 211135052 its reverse (250531112), we get a palindrome (461666164).

The spelling of 211135052 in words is "two hundred eleven million, one hundred thirty-five thousand, fifty-two".

Divisors: 1 2 4 181 193 362 386 724 772 1511 3022 6044 34933 69866 139732 273491 291623 546982 583246 1093964 1166492 52783763 105567526 211135052