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542000144 = 24718012687
BaseRepresentation
bin100000010011100…
…100010000010000
31101202212110102102
4200103210100100
52102223001034
6125440535532
716300632230
oct4023442020
91352773372
10542000144
11258a43804
121316215a8
138839c15a
1451da9cc0
15328b297e
hex204e4410

542000144 has 40 divisors (see below), whose sum is σ = 1201256448. Its totient is φ = 232070400.

The previous prime is 542000143. The next prime is 542000149. The reversal of 542000144 is 441000245.

It is not an unprimeable number, because it can be changed into a prime (542000143) 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, 200369 + ... + 203055.

Almost surely, 2542000144 is an apocalyptic number.

It is an amenable number.

542000144 is an abundant number, since it is smaller than the sum of its proper divisors (659256304).

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

542000144 is a wasteful number, since it uses less digits than its factorization.

542000144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4503 (or 4497 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 542000144 is about 23280.8965463102. The cubic root of 542000144 is about 815.3294584300.

Adding to 542000144 its reverse (441000245), we get a palindrome (983000389).

The spelling of 542000144 in words is "five hundred forty-two million, one hundred forty-four", and thus it is an aban number.

Divisors: 1 2 4 7 8 14 16 28 56 112 1801 2687 3602 5374 7204 10748 12607 14408 18809 21496 25214 28816 37618 42992 50428 75236 100856 150472 201712 300944 4839287 9678574 19357148 33875009 38714296 67750018 77428592 135500036 271000072 542000144