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42067480 = 23572132127
BaseRepresentation
bin1010000001111…
…0011000011000
32221011020201211
42200132120120
541232124410
64101352504
71020365500
oct240363030
987136654
1042067480
1121822a14
1212108734
13893b900
145830a00
153a5e68a
hex281e618

42067480 has 144 divisors (see below), whose sum is σ = 120165120. Its totient is φ = 13208832.

The previous prime is 42067457. The next prime is 42067481. The reversal of 42067480 is 8476024.

It is a super-3 number, since 3×420674803 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42067481) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 331177 + ... + 331303.

It is an arithmetic number, because the mean of its divisors is an integer number (834480).

Almost surely, 242067480 is an apocalyptic number.

42067480 is a gapful number since it is divisible by the number (40) 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 42067480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60082560).

42067480 is an abundant number, since it is smaller than the sum of its proper divisors (78097640).

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

42067480 is a wasteful number, since it uses less digits than its factorization.

42067480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 42067480 is about 6485.9448039588. The cubic root of 42067480 is about 347.7887254163.

The spelling of 42067480 in words is "forty-two million, sixty-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 49 52 56 65 70 91 98 104 127 130 140 169 182 196 245 254 260 280 338 364 392 455 490 508 520 635 637 676 728 845 889 910 980 1016 1183 1270 1274 1352 1651 1690 1778 1820 1960 2366 2540 2548 3185 3302 3380 3556 3640 4445 4732 5080 5096 5915 6223 6370 6604 6760 7112 8255 8281 8890 9464 11557 11830 12446 12740 13208 16510 16562 17780 21463 23114 23660 24892 25480 31115 33020 33124 35560 41405 42926 46228 47320 49784 57785 62230 66040 66248 80899 82810 85852 92456 107315 115570 124460 150241 161798 165620 171704 214630 231140 248920 300482 323596 331240 404495 429260 462280 600964 647192 751205 808990 858520 1051687 1201928 1502410 1617980 2103374 3004820 3235960 4206748 5258435 6009640 8413496 10516870 21033740 42067480