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1244240008 = 2311101139991
BaseRepresentation
bin100101000101001…
…1001100010001000
310012201020221102021
41022022121202020
510022011140013
6323244214224
742555602614
oct11212314210
93181227367
101244240008
11589382a30
122a883a374
1316aa13bbb
14bb368344
1574378a8d
hex4a299888

1244240008 has 32 divisors (see below), whose sum is σ = 2570253120. Its totient is φ = 559960000.

The previous prime is 1244240003. The next prime is 1244240017. The reversal of 1244240008 is 8000424421.

It is not an unprimeable number, because it can be changed into a prime (1244240003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61108 + ... + 78883.

It is an arithmetic number, because the mean of its divisors is an integer number (80320410).

Almost surely, 21244240008 is an apocalyptic number.

It is an amenable number.

1244240008 is an abundant number, since it is smaller than the sum of its proper divisors (1326013112).

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

1244240008 is a wasteful number, since it uses less digits than its factorization.

1244240008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140109 (or 140105 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 1244240008 is about 35273.7864142765. The cubic root of 1244240008 is about 1075.5601934783.

Adding to 1244240008 its reverse (8000424421), we get a palindrome (9244664429).

The spelling of 1244240008 in words is "one billion, two hundred forty-four million, two hundred forty thousand, eight".

Divisors: 1 2 4 8 11 22 44 88 101 202 404 808 1111 2222 4444 8888 139991 279982 559964 1119928 1539901 3079802 6159604 12319208 14139091 28278182 56556364 113112728 155530001 311060002 622120004 1244240008