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1440225241 = 713137115523
BaseRepresentation
bin101010111011000…
…0001011111011001
310201101001000121121
41111312001133121
510422144201431
6354525005241
750455466260
oct12566013731
93641030547
101440225241
11679a735a4
123423b3821
1319c4c39b0
14d93c35d7
158668d611
hex55d817d9

1440225241 has 16 divisors (see below), whose sum is σ = 1785538944. Its totient is φ = 1131191424.

The previous prime is 1440225217. The next prime is 1440225271. The reversal of 1440225241 is 1425220441.

It is a cyclic number.

It is not a de Polignac number, because 1440225241 - 27 = 1440225113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440225271) 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 15 ways as a sum of consecutive naturals, for example, 45295 + ... + 70228.

It is an arithmetic number, because the mean of its divisors is an integer number (111596184).

Almost surely, 21440225241 is an apocalyptic number.

It is an amenable number.

1440225241 is a deficient number, since it is larger than the sum of its proper divisors (345313703).

1440225241 is a wasteful number, since it uses less digits than its factorization.

1440225241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115680.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 1440225241 is about 37950.2996167356. The cubic root of 1440225241 is about 1129.3021093366.

Adding to 1440225241 its reverse (1425220441), we get a palindrome (2865445682).

The spelling of 1440225241 in words is "one billion, four hundred forty million, two hundred twenty-five thousand, two hundred forty-one".

Divisors: 1 7 13 91 137 959 1781 12467 115523 808661 1501799 10512593 15826651 110786557 205746463 1440225241