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1440206107 = 5961339821
BaseRepresentation
bin101010111010111…
…1100110100011011
310201101000001100221
41111311330310123
510422143043412
6354524340511
750455356424
oct12565746433
93641001327
101440206107
11679a6018a
123423a4737
1319c4b8082
14d93ba64b
1586687b07
hex55d7cd1b

1440206107 has 8 divisors (see below), whose sum is σ = 1467042480. Its totient is φ = 1413450720.

The previous prime is 1440206087. The next prime is 1440206171. The reversal of 1440206107 is 7016020441.

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

It is a cyclic number.

It is not a de Polignac number, because 1440206107 - 27 = 1440205979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1440206407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16257 + ... + 56077.

It is an arithmetic number, because the mean of its divisors is an integer number (183380310).

Almost surely, 21440206107 is an apocalyptic number.

1440206107 is a deficient number, since it is larger than the sum of its proper divisors (26836373).

1440206107 is an equidigital number, since it uses as much as digits as its factorization.

1440206107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40493.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1440206107 is about 37950.0475230269. The cubic root of 1440206107 is about 1129.2971082295.

Adding to 1440206107 its reverse (7016020441), we get a palindrome (8456226548).

The spelling of 1440206107 in words is "one billion, four hundred forty million, two hundred six thousand, one hundred seven".

Divisors: 1 59 613 36167 39821 2349439 24410273 1440206107