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42982000 = 245321491
BaseRepresentation
bin1010001111110…
…1101001110000
32222212201012221
42203331221300
542000411000
64133130424
71031224645
oct243755160
988781187
1042982000
1122298016
1212489a14
138b9bc49
1459cbdcc
153b9061a
hex28fda70

42982000 has 40 divisors (see below), whose sum is σ = 103935312. Its totient is φ = 17192000.

The previous prime is 42981949. The next prime is 42982013. The reversal of 42982000 is 28924.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

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, 8746 + ... + 12745.

Almost surely, 242982000 is an apocalyptic number.

42982000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42982000 is an abundant number, since it is smaller than the sum of its proper divisors (60953312).

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

42982000 is a wasteful number, since it uses less digits than its factorization.

42982000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21514 (or 21498 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 42982000 is about 6556.0658935066. The cubic root of 42982000 is about 350.2909145919.

The spelling of 42982000 in words is "forty-two million, nine hundred eighty-two thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 21491 42982 85964 107455 171928 214910 343856 429820 537275 859640 1074550 1719280 2149100 2686375 4298200 5372750 8596400 10745500 21491000 42982000