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42758580 = 22353312153
BaseRepresentation
bin1010001100011…
…1000110110100
32222110100202010
42203013012310
541421233310
64124244220
71026304404
oct243070664
988410663
1042758580
1122155177
12123a0670
138b21347
145970804
153b49320
hex28c71b4

42758580 has 48 divisors (see below), whose sum is σ = 120141504. Its totient is φ = 11362560.

The previous prime is 42758567. The next prime is 42758581. The reversal of 42758580 is 8585724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42758581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18784 + ... + 20936.

It is an arithmetic number, because the mean of its divisors is an integer number (2502948).

Almost surely, 242758580 is an apocalyptic number.

It is an amenable number.

42758580 is an abundant number, since it is smaller than the sum of its proper divisors (77382924).

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

42758580 is a wasteful number, since it uses less digits than its factorization.

42758580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496 (or 2494 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 42758580 is about 6539.0045113916. The cubic root of 42758580 is about 349.6829237215.

The spelling of 42758580 in words is "forty-two million, seven hundred fifty-eight thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 331 662 993 1324 1655 1986 2153 3310 3972 4306 4965 6459 6620 8612 9930 10765 12918 19860 21530 25836 32295 43060 64590 129180 712643 1425286 2137929 2850572 3563215 4275858 7126430 8551716 10689645 14252860 21379290 42758580