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42407758 = 21710911443
BaseRepresentation
bin1010000111000…
…1011101001110
32221210112111201
42201301131032
541324022013
64112540114
71023313531
oct241613516
987715451
1042407758
1121a35638
121225163a
138a2a763
1458bca18
153aca3dd
hex287174e

42407758 has 16 divisors (see below), whose sum is σ = 67977360. Its totient is φ = 19771776.

The previous prime is 42407747. The next prime is 42407767. The reversal of 42407758 is 85770424.

42407758 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (4248585).

Almost surely, 242407758 is an apocalyptic number.

42407758 is a deficient number, since it is larger than the sum of its proper divisors (25569602).

42407758 is a wasteful number, since it uses less digits than its factorization.

42407758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571.

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 42407758 is about 6512.1239238823. The cubic root of 42407758 is about 348.7239465299.

The spelling of 42407758 in words is "forty-two million, four hundred seven thousand, seven hundred fifty-eight".

Divisors: 1 2 17 34 109 218 1853 3706 11443 22886 194531 389062 1247287 2494574 21203879 42407758