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201230244 = 223723003
BaseRepresentation
bin10111111111010…
…00011110100100
3112000122120000000
423333220132210
5403003331434
631545021300
74662300045
oct1377503644
9460576000
10201230244
11a3653296
1257484830
13328c8267
141ca228cc
15129edb99
hexbfe87a4

201230244 has 48 divisors (see below), whose sum is σ = 528171840. Its totient is φ = 67073832.

The previous prime is 201230219. The next prime is 201230291. The reversal of 201230244 is 442032102.

It is a super-2 number, since 2×2012302442 = 80987222200599072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2754 + ... + 20249.

It is an arithmetic number, because the mean of its divisors is an integer number (11003580).

Almost surely, 2201230244 is an apocalyptic number.

It is an amenable number.

201230244 is an abundant number, since it is smaller than the sum of its proper divisors (326941596).

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

201230244 is an equidigital number, since it uses as much as digits as its factorization.

201230244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23028 (or 23008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 201230244 is about 14185.5646345149. The cubic root of 201230244 is about 586.0001824909. Note that the first 3 decimals are identical.

Adding to 201230244 its reverse (442032102), we get a palindrome (643262346).

The spelling of 201230244 in words is "two hundred one million, two hundred thirty thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 729 972 1458 2187 2916 4374 8748 23003 46006 69009 92012 138018 207027 276036 414054 621081 828108 1242162 1863243 2484324 3726486 5589729 7452972 11179458 16769187 22358916 33538374 50307561 67076748 100615122 201230244