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42870060 = 223558821
BaseRepresentation
bin1010001110001…
…0010100101100
32222200000200000
42203202110230
541433320220
64130504300
71030250412
oct243422454
988600600
1042870060
1122220a02
1212435090
138b5cccc
14599d2b2
153b6c390
hex28e252c

42870060 has 72 divisors (see below), whose sum is σ = 134870736. Its totient is φ = 11430720.

The previous prime is 42870059. The next prime is 42870067. The reversal of 42870060 is 6007824.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42870067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450 + ... + 9270.

Almost surely, 242870060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42870060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67435368).

42870060 is an abundant number, since it is smaller than the sum of its proper divisors (92000676).

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

42870060 is a wasteful number, since it uses less digits than its factorization.

42870060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8845 (or 8831 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 42870060 is about 6547.5231958352. The cubic root of 42870060 is about 349.9865573068.

Adding to 42870060 its reverse (6007824), we get a palindrome (48877884).

The spelling of 42870060 in words is "forty-two million, eight hundred seventy thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 810 972 1215 1620 2430 4860 8821 17642 26463 35284 44105 52926 79389 88210 105852 132315 158778 176420 238167 264630 317556 396945 476334 529260 714501 793890 952668 1190835 1429002 1587780 2143503 2381670 2858004 3572505 4287006 4763340 7145010 8574012 10717515 14290020 21435030 42870060