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12144413442 = 237289152701
BaseRepresentation
bin10110100111101110…
…10000101100000010
31011100100212010100110
423103313100230002
5144332432212232
65325024532150
7606643545120
oct132367205402
934310763313
1012144413442
115172228627
12242b181056
1311b7058975
14832c90910
154b1299acc
hex2d3dd0b02

12144413442 has 16 divisors (see below), whose sum is σ = 27758659392. Its totient is φ = 3469832400.

The previous prime is 12144413357. The next prime is 12144413447. The reversal of 12144413442 is 24431444121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12144413447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144576309 + ... + 144576392.

It is an arithmetic number, because the mean of its divisors is an integer number (1734916212).

Almost surely, 212144413442 is an apocalyptic number.

12144413442 is an abundant number, since it is smaller than the sum of its proper divisors (15614245950).

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

12144413442 is a wasteful number, since it uses less digits than its factorization.

12144413442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289152713.

The product of its digits is 12288, while the sum is 30.

Adding to 12144413442 its reverse (24431444121), we get a palindrome (36575857563).

The spelling of 12144413442 in words is "twelve billion, one hundred forty-four million, four hundred thirteen thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 289152701 578305402 867458103 1734916206 2024068907 4048137814 6072206721 12144413442