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12144311304 = 233895685539
BaseRepresentation
bin10110100111101101…
…10111110000001000
31011100100122221020120
423103312313300020
5144332420430204
65325022423240
7606642641256
oct132366676010
934310587216
1012144311304
115172168914
12242b131b20
1311b7021328
14832c655d6
154b12796d9
hex2d3db7c08

12144311304 has 32 divisors (see below), whose sum is σ = 30701916000. Its totient is φ = 4002618752.

The previous prime is 12144311269. The next prime is 12144311423. The reversal of 12144311304 is 40311344121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2840634 + ... + 2844905.

It is an arithmetic number, because the mean of its divisors is an integer number (959434875).

Almost surely, 212144311304 is an apocalyptic number.

It is an amenable number.

12144311304 is an abundant number, since it is smaller than the sum of its proper divisors (18557604696).

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

12144311304 is a wasteful number, since it uses less digits than its factorization.

12144311304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685637 (or 5685633 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 12144311304 its reverse (40311344121), we get a palindrome (52455655425).

The spelling of 12144311304 in words is "twelve billion, one hundred forty-four million, three hundred eleven thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 89 178 267 356 534 712 1068 2136 5685539 11371078 17056617 22742156 34113234 45484312 68226468 136452936 506012971 1012025942 1518038913 2024051884 3036077826 4048103768 6072155652 12144311304