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42520960 = 27529279
BaseRepresentation
bin1010001000110…
…1000110000000
32222000021210101
42202031012000
541341132320
64115212144
71024264546
oct242150600
988007711
1042520960
1122002699
12122a7054
138a6a141
14590bd96
153aedc0a
hex288d180

42520960 has 96 divisors (see below), whose sum is σ = 106610400. Its totient is φ = 16214016.

The previous prime is 42520943. The next prime is 42520969. The reversal of 42520960 is 6902524.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538201 + ... + 538279.

It is an arithmetic number, because the mean of its divisors is an integer number (1110525).

Almost surely, 242520960 is an apocalyptic number.

42520960 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 42520960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53305200).

42520960 is an abundant number, since it is smaller than the sum of its proper divisors (64089440).

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

42520960 is an equidigital number, since it uses as much as digits as its factorization.

42520960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42520960 is about 6520.8097656656. The cubic root of 42520960 is about 349.0339619334.

The spelling of 42520960 in words is "forty-two million, five hundred twenty thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 64 79 80 116 128 145 158 160 232 290 316 320 395 464 580 632 640 790 841 928 1160 1264 1580 1682 1856 2291 2320 2528 3160 3364 3712 4205 4582 4640 5056 6320 6728 8410 9164 9280 10112 11455 12640 13456 16820 18328 18560 22910 25280 26912 33640 36656 45820 50560 53824 66439 67280 73312 91640 107648 132878 134560 146624 183280 265756 269120 293248 332195 366560 531512 538240 664390 733120 1063024 1328780 1466240 2126048 2657560 4252096 5315120 8504192 10630240 21260480 42520960