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27942000 = 243534657
BaseRepresentation
bin110101010010…
…1110001110000
31221120121012220
41222211301300
524123121000
62434521040
7456334362
oct152456160
957517186
1027942000
1114855269
129436180
135a34338
1439d4d32
1526be1a0
hex1aa5c70

27942000 has 80 divisors (see below), whose sum is σ = 90104352. Its totient is φ = 7449600.

The previous prime is 27941983. The next prime is 27942007. The reversal of 27942000 is 24972.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27942007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3672 + ... + 8328.

Almost surely, 227942000 is an apocalyptic number.

27942000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27942000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45052176).

27942000 is an abundant number, since it is smaller than the sum of its proper divisors (62162352).

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

27942000 is a wasteful number, since it uses less digits than its factorization.

27942000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4683 (or 4667 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 27942000 is about 5286.0192962190. The cubic root of 27942000 is about 303.4490830106.

Adding to 27942000 its reverse (24972), we get a palindrome (27966972).

The spelling of 27942000 in words is "twenty-seven million, nine hundred forty-two thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 125 150 200 240 250 300 375 400 500 600 750 1000 1200 1500 2000 3000 4657 6000 9314 13971 18628 23285 27942 37256 46570 55884 69855 74512 93140 111768 116425 139710 186280 223536 232850 279420 349275 372560 465700 558840 582125 698550 931400 1117680 1164250 1397100 1746375 1862800 2328500 2794200 3492750 4657000 5588400 6985500 9314000 13971000 27942000