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42550970 = 2571173757
BaseRepresentation
bin1010001001010…
…0011010111010
32222001210221212
42202110122322
541343112340
64120003122
71024451210
oct242243272
988053855
1042550970
11220231a0
12123004a2
138a7a9b7
145918cb0
153b07a65
hex28946ba

42550970 has 64 divisors (see below), whose sum is σ = 96926976. Its totient is φ = 13063680.

The previous prime is 42550957. The next prime is 42550993. The reversal of 42550970 is 7905524.

42550970 = T125 + T126 + ... + T635.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55832 + ... + 56588.

It is an arithmetic number, because the mean of its divisors is an integer number (1514484).

Almost surely, 242550970 is an apocalyptic number.

42550970 is an abundant number, since it is smaller than the sum of its proper divisors (54376006).

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

42550970 is a wasteful number, since it uses less digits than its factorization.

42550970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 42550970 is about 6523.1104543768. The cubic root of 42550970 is about 349.1160551408.

The spelling of 42550970 in words is "forty-two million, five hundred fifty thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 73 77 110 146 154 365 385 511 730 757 770 803 1022 1514 1606 2555 3785 4015 5110 5299 5621 7570 8030 8327 10598 11242 16654 26495 28105 41635 52990 55261 56210 58289 83270 110522 116578 276305 291445 386827 552610 582890 607871 773654 1215742 1934135 3039355 3868270 4255097 6078710 8510194 21275485 42550970