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1144503252 = 223231791757
BaseRepresentation
bin100010000110111…
…1011101111010100
32221202120210022100
41010031323233110
54320443101002
6305322402100
740235055114
oct10415735724
92852523270
101144503252
11538051262
1227b360330
13153163179
14ac005044
156a72711c
hex4437bbd4

1144503252 has 18 divisors (see below), whose sum is σ = 2893049978. Its totient is φ = 381501072.

The previous prime is 1144503221. The next prime is 1144503259. The reversal of 1144503252 is 2523054411.

It can be written as a sum of positive squares in only one way, i.e., 892455876 + 252047376 = 29874^2 + 15876^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144503259) 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 5 ways as a sum of consecutive naturals, for example, 15895843 + ... + 15895914.

Almost surely, 21144503252 is an apocalyptic number.

1144503252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1144503252 is an abundant number, since it is smaller than the sum of its proper divisors (1748546726).

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

1144503252 is a wasteful number, since it uses less digits than its factorization.

1144503252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31791767 (or 31791762 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1144503252 is about 33830.5077112360. The cubic root of 1144503252 is about 1046.0176443884.

Adding to 1144503252 its reverse (2523054411), we get a palindrome (3667557663).

The spelling of 1144503252 in words is "one billion, one hundred forty-four million, five hundred three thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 31791757 63583514 95375271 127167028 190750542 286125813 381501084 572251626 1144503252