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12143433140 = 2251953602951
BaseRepresentation
bin10110100111100111…
…00001010110110100
31011100022000022121222
423103303201112310
5144332204330030
65324551525512
7606632323106
oct132363412664
934308008558
1012143433140
115171719063
12242a989898
1311b6aa46c7
14832ab7576
154b11543e5
hex2d3ce15b4

12143433140 has 48 divisors (see below), whose sum is σ = 27349902720. Its totient is φ = 4514889600.

The previous prime is 12143433101. The next prime is 12143433161. The reversal of 12143433140 is 4133434121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281336 + ... + 321615.

It is an arithmetic number, because the mean of its divisors is an integer number (569789640).

Almost surely, 212143433140 is an apocalyptic number.

12143433140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12143433140 is an abundant number, since it is smaller than the sum of its proper divisors (15206469580).

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

12143433140 is a wasteful number, since it uses less digits than its factorization.

12143433140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603032 (or 603030 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 12143433140 its reverse (4133434121), we get a palindrome (16276867261).

The spelling of 12143433140 in words is "twelve billion, one hundred forty-three million, four hundred thirty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 19 20 38 53 76 95 106 190 212 265 380 530 1007 1060 2014 4028 5035 10070 20140 602951 1205902 2411804 3014755 6029510 11456069 12059020 22912138 31956403 45824276 57280345 63912806 114560690 127825612 159782015 229121380 319564030 607171657 639128060 1214343314 2428686628 3035858285 6071716570 12143433140