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42074980 = 2252103749
BaseRepresentation
bin1010000010000…
…0001101100100
32221011122000121
42200200031210
541232344410
64101451324
71020426403
oct240401544
987148017
1042074980
1121828612
1212110b44
13894214c
14583363a
153a619da
hex2820364

42074980 has 12 divisors (see below), whose sum is σ = 88357500. Its totient is φ = 16829984.

The previous prime is 42074959. The next prime is 42074993. The reversal of 42074980 is 8947024.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25623844 + 16451136 = 5062^2 + 4056^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051855 + ... + 1051894.

It is an arithmetic number, because the mean of its divisors is an integer number (7363125).

Almost surely, 242074980 is an apocalyptic number.

It is an amenable number.

42074980 is an abundant number, since it is smaller than the sum of its proper divisors (46282520).

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

42074980 is a wasteful number, since it uses less digits than its factorization.

42074980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103758 (or 2103756 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42074980 is about 6486.5229514741. The cubic root of 42074980 is about 347.8093926906.

The spelling of 42074980 in words is "forty-two million, seventy-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 2103749 4207498 8414996 10518745 21037490 42074980