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42950540 = 2252147527
BaseRepresentation
bin1010001111010…
…1111110001100
32222211010001202
42203311332030
541443404130
64132325032
71031034143
oct243657614
988733052
1042950540
1122276416
1212473778
138b8a829
1459c075a
153b86145
hex28f5f8c

42950540 has 12 divisors (see below), whose sum is σ = 90196176. Its totient is φ = 17180208.

The previous prime is 42950539. The next prime is 42950543. The reversal of 42950540 is 4505924.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (42950543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073744 + ... + 1073783.

It is an arithmetic number, because the mean of its divisors is an integer number (7516348).

Almost surely, 242950540 is an apocalyptic number.

It is an amenable number.

42950540 is an abundant number, since it is smaller than the sum of its proper divisors (47245636).

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

42950540 is a wasteful number, since it uses less digits than its factorization.

42950540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147536 (or 2147534 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 42950540 is about 6553.6661495685. Note that the first 3 decimals coincide. The cubic root of 42950540 is about 350.2054304207.

The spelling of 42950540 in words is "forty-two million, nine hundred fifty thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 2147527 4295054 8590108 10737635 21475270 42950540