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1440012002 = 2111322212267
BaseRepresentation
bin101010111010100…
…1101011011100010
310201100122012002212
41111311031123202
510422120341002
6354520242122
750453620502
oct12565153342
93640565085
101440012002
11679938370
12342310342
1319c44a910
14d9369a02
158664a352
hex55d4d6e2

1440012002 has 32 divisors (see below), whose sum is σ = 2539905984. Its totient is φ = 603662400.

The previous prime is 1440012001. The next prime is 1440012017. The reversal of 1440012002 is 2002100441.

It is not an unprimeable number, because it can be changed into a prime (1440012001) 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, 634073 + ... + 636339.

It is an arithmetic number, because the mean of its divisors is an integer number (79372062).

Almost surely, 21440012002 is an apocalyptic number.

1440012002 is a deficient number, since it is larger than the sum of its proper divisors (1099893982).

1440012002 is a wasteful number, since it uses less digits than its factorization.

1440012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1440012002 is about 37947.4900619264. The cubic root of 1440012002 is about 1129.2463719581.

Adding to 1440012002 its reverse (2002100441), we get a palindrome (3442112443).

The spelling of 1440012002 in words is "one billion, four hundred forty million, twelve thousand, two".

Divisors: 1 2 11 13 22 26 143 286 2221 2267 4442 4534 24431 24937 28873 29471 48862 49874 57746 58942 317603 324181 635206 648362 5035007 10070014 55385077 65455091 110770154 130910182 720006001 1440012002