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42868630 = 257289983
BaseRepresentation
bin1010001110000…
…1111110010110
32222122221201001
42203201332112
541433244010
64130453514
71030243300
oct243417626
988587631
1042868630
112221a922
121243429a
138b5c46c
14599c970
153b6bc3a
hex28e1f96

42868630 has 48 divisors (see below), whose sum is σ = 90862560. Its totient is φ = 14517888.

The previous prime is 42868627. The next prime is 42868783. The reversal of 42868630 is 3686824.

It is a self number, because there is not a number n which added to its sum of digits gives 42868630.

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, 43119 + ... + 44101.

It is an arithmetic number, because the mean of its divisors is an integer number (1892970).

Almost surely, 242868630 is an apocalyptic number.

42868630 is an abundant number, since it is smaller than the sum of its proper divisors (47993930).

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

42868630 is a wasteful number, since it uses less digits than its factorization.

42868630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 42868630 is about 6547.4139933259. The cubic root of 42868630 is about 349.9826658082.

The spelling of 42868630 in words is "forty-two million, eight hundred sixty-eight thousand, six hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 89 98 178 245 445 490 623 890 983 1246 1966 3115 4361 4915 6230 6881 8722 9830 13762 21805 34405 43610 48167 68810 87487 96334 174974 240835 437435 481670 612409 874870 1224818 3062045 4286863 6124090 8573726 21434315 42868630