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1440300043 = 713231375023
BaseRepresentation
bin101010111011001…
…0011110000001011
310201101011211020001
41111312103300023
510422204100133
6354530343431
750456230330
oct12566236013
93641154201
101440300043
1167a014816
1234242ab77
1319c51ba60
14d9402987
15866a587d
hex55d93c0b

1440300043 has 32 divisors (see below), whose sum is σ = 1863622656. Its totient is φ = 1081859328.

The previous prime is 1440300041. The next prime is 1440300049. The reversal of 1440300043 is 3400030441.

It is a cyclic number.

It is not a de Polignac number, because 1440300043 - 21 = 1440300041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1440300041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284230 + ... + 289252.

It is an arithmetic number, because the mean of its divisors is an integer number (58238208).

Almost surely, 21440300043 is an apocalyptic number.

1440300043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1440300043 is a deficient number, since it is larger than the sum of its proper divisors (423322613).

1440300043 is a wasteful number, since it uses less digits than its factorization.

1440300043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1440300043 is about 37951.2851297555. The cubic root of 1440300043 is about 1129.3216601197.

Adding to 1440300043 its reverse (3400030441), we get a palindrome (4840330484).

The spelling of 1440300043 in words is "one billion, four hundred forty million, three hundred thousand, forty-three".

Divisors: 1 7 13 23 91 137 161 299 959 1781 2093 3151 5023 12467 22057 35161 40963 65299 115529 286741 457093 688151 808703 1501877 4817057 8945963 10513139 15827473 62621741 110792311 205757149 1440300043