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12942000 = 243253719
BaseRepresentation
bin110001010111…
…101010110000
3220100112002100
4301113222300
511303121000
61141220400
7215001531
oct61275260
926315070
1012942000
11733a575
124401700
1328b19b6
141a0c688
151209a00
hexc57ab0

12942000 has 120 divisors (see below), whose sum is σ = 45264960. Its totient is φ = 3446400.

The previous prime is 12941993. The next prime is 12942023. The reversal of 12942000 is 24921.

12942000 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17641 + ... + 18359.

It is an arithmetic number, because the mean of its divisors is an integer number (377208).

Almost surely, 212942000 is an apocalyptic number.

12942000 is a gapful number since it is divisible by the number (10) 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 12942000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22632480).

12942000 is an abundant number, since it is smaller than the sum of its proper divisors (32322960).

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

12942000 is a wasteful number, since it uses less digits than its factorization.

12942000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748 (or 729 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12942000 is about 3597.4991313411. The cubic root of 12942000 is about 234.7832617624.

Adding to 12942000 its reverse (24921), we get a palindrome (12966921).

The spelling of 12942000 in words is "twelve million, nine hundred forty-two thousand".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 48 50 60 72 75 80 90 100 120 125 144 150 180 200 225 240 250 300 360 375 400 450 500 600 719 720 750 900 1000 1125 1200 1438 1500 1800 2000 2157 2250 2876 3000 3595 3600 4314 4500 5752 6000 6471 7190 8628 9000 10785 11504 12942 14380 17256 17975 18000 21570 25884 28760 32355 34512 35950 43140 51768 53925 57520 64710 71900 86280 89875 103536 107850 129420 143800 161775 172560 179750 215700 258840 269625 287600 323550 359500 431400 517680 539250 647100 719000 808875 862800 1078500 1294200 1438000 1617750 2157000 2588400 3235500 4314000 6471000 12942000