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42020758 = 2131616183
BaseRepresentation
bin1010000001001…
…0111110010110
32221001212122101
42200102332112
541224131013
64100352314
71020112333
oct240227626
987055571
1042020758
11217a08aa
12120a569a
138923570
14581b98a
153a508dd
hex2812f96

42020758 has 8 divisors (see below), whose sum is σ = 67879728. Its totient is φ = 19394184.

The previous prime is 42020743. The next prime is 42020791. The reversal of 42020758 is 85702024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 808066 + ... + 808117.

It is an arithmetic number, because the mean of its divisors is an integer number (8484966).

Almost surely, 242020758 is an apocalyptic number.

42020758 is a deficient number, since it is larger than the sum of its proper divisors (25858970).

42020758 is a wasteful number, since it uses less digits than its factorization.

42020758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616198.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 42020758 is about 6482.3420150436. The cubic root of 42020758 is about 347.6599212165.

It can be divided in two parts, 42020 and 758, that added together give a triangular number (42778 = T292).

The spelling of 42020758 in words is "forty-two million, twenty thousand, seven hundred fifty-eight".

Divisors: 1 2 13 26 1616183 3232366 21010379 42020758