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40681282 = 224184401
BaseRepresentation
bin1001101100101…
…1111101000010
32211112211020011
42123023331002
540403300112
64011535134
71002533215
oct233137502
984484204
1040681282
1120a664a4
121175a4aa
138574985
14558d77c
153888aa7
hex26cbf42

40681282 has 8 divisors (see below), whose sum is σ = 61275852. Its totient is φ = 20256000.

The previous prime is 40681279. The next prime is 40681283. The reversal of 40681282 is 28218604.

It can be written as a sum of positive squares in 2 ways, for example, as 39576681 + 1104601 = 6291^2 + 1051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40681283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41719 + ... + 42682.

Almost surely, 240681282 is an apocalyptic number.

40681282 is a deficient number, since it is larger than the sum of its proper divisors (20594570).

40681282 is a wasteful number, since it uses less digits than its factorization.

40681282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84644.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 40681282 is about 6378.1879871951. The cubic root of 40681282 is about 343.9258955663.

Adding to 40681282 its reverse (28218604), we get a palindrome (68899886).

The spelling of 40681282 in words is "forty million, six hundred eighty-one thousand, two hundred eighty-two".

Divisors: 1 2 241 482 84401 168802 20340641 40681282