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42111200 = 255252639
BaseRepresentation
bin1010000010100…
…1000011100000
32221020110201002
42200221003200
541240024300
64102331132
71020640115
oct240510340
987213632
1042111200
112185284a
1212129aa8
138955791
14584290c
153a6c5d5
hex28290e0

42111200 has 36 divisors (see below), whose sum is σ = 102805920. Its totient is φ = 16844160.

The previous prime is 42111131. The next prime is 42111211. The reversal of 42111200 is 211124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25520 + ... + 27119.

It is an arithmetic number, because the mean of its divisors is an integer number (2855720).

Almost surely, 242111200 is an apocalyptic number.

42111200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42111200 is an abundant number, since it is smaller than the sum of its proper divisors (60694720).

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

42111200 is a wasteful number, since it uses less digits than its factorization.

42111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52659 (or 52646 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 42111200 is about 6489.3142935136. The cubic root of 42111200 is about 347.9091672919.

Adding to 42111200 its reverse (211124), we get a palindrome (42322324).

The spelling of 42111200 in words is "forty-two million, one hundred eleven thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 52639 105278 210556 263195 421112 526390 842224 1052780 1315975 1684448 2105560 2631950 4211120 5263900 8422240 10527800 21055600 42111200