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42586880 = 2857397
BaseRepresentation
bin1010001001110…
…1001100000000
32222010122012212
42202131030000
541400240010
64120441252
71024661000
oct242351400
988118185
1042586880
1122048176
1212319228
138a9114b
145928000
153b13505
hex289d300

42586880 has 144 divisors (see below), whose sum is σ = 120187200. Its totient is φ = 14450688.

The previous prime is 42586871. The next prime is 42586883. The reversal of 42586880 is 8868524.

It is not an unprimeable number, because it can be changed into a prime (42586883) 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, 438992 + ... + 439088.

Almost surely, 242586880 is an apocalyptic number.

42586880 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 42586880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60093600).

42586880 is an abundant number, since it is smaller than the sum of its proper divisors (77600320).

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

42586880 is an frugal number, since it uses more digits than its factorization.

42586880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 42586880 is about 6525.8623951168. The cubic root of 42586880 is about 349.2142372542.

The spelling of 42586880 in words is "forty-two million, five hundred eighty-six thousand, eight hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 49 56 64 70 80 97 98 112 128 140 160 194 196 224 245 256 280 320 343 388 392 448 485 490 560 640 679 686 776 784 896 970 980 1120 1280 1358 1372 1552 1568 1715 1792 1940 1960 2240 2716 2744 3104 3136 3395 3430 3880 3920 4480 4753 5432 5488 6208 6272 6790 6860 7760 7840 8960 9506 10864 10976 12416 12544 13580 13720 15520 15680 19012 21728 21952 23765 24832 27160 27440 31040 31360 33271 38024 43456 43904 47530 54320 54880 62080 62720 66542 76048 86912 87808 95060 108640 109760 124160 133084 152096 166355 173824 190120 217280 219520 266168 304192 332710 380240 434560 439040 532336 608384 665420 760480 869120 1064672 1216768 1330840 1520960 2129344 2661680 3041920 4258688 5323360 6083840 8517376 10646720 21293440 42586880