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42702513 = 372388411
BaseRepresentation
bin1010001011100…
…1011010110001
32222100111211120
42202321122301
541412440023
64123132453
71025652060
oct242713261
988314746
1042702513
1122117037
1212374129
138b01979
1459581d7
153b378e3
hex28b96b1

42702513 has 16 divisors (see below), whose sum is σ = 67900416. Its totient is φ = 23340240.

The previous prime is 42702509. The next prime is 42702533. The reversal of 42702513 is 31520724.

42702513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42702513 - 22 = 42702509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42702533) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 43723 + ... + 44688.

It is an arithmetic number, because the mean of its divisors is an integer number (4243776).

Almost surely, 242702513 is an apocalyptic number.

It is an amenable number.

42702513 is a deficient number, since it is larger than the sum of its proper divisors (25197903).

42702513 is a wasteful number, since it uses less digits than its factorization.

42702513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88444.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 42702513 is about 6534.7159846469. The cubic root of 42702513 is about 349.5300168038.

The spelling of 42702513 in words is "forty-two million, seven hundred two thousand, five hundred thirteen".

Divisors: 1 3 7 21 23 69 161 483 88411 265233 618877 1856631 2033453 6100359 14234171 42702513