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42403417 = 733118301
BaseRepresentation
bin1010000111000…
…0011001011001
32221210022112221
42201300121121
541323402132
64112504041
71023265060
oct241603131
987708487
1042403417
1121a32351
121224b021
138a287a4
1458bb1d7
153ac8e97
hex2870659

42403417 has 8 divisors (see below), whose sum is σ = 48610112. Its totient is φ = 36234000.

The previous prime is 42403409. The next prime is 42403433. The reversal of 42403417 is 71430424.

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

It is a cyclic number.

It is not a de Polignac number, because 42403417 - 23 = 42403409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42403391 and 42403400.

It is not an unprimeable number, because it can be changed into a prime (42403217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6834 + ... + 11467.

It is an arithmetic number, because the mean of its divisors is an integer number (6076264).

Almost surely, 242403417 is an apocalyptic number.

It is an amenable number.

42403417 is a deficient number, since it is larger than the sum of its proper divisors (6206695).

42403417 is a wasteful number, since it uses less digits than its factorization.

42403417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18639.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 42403417 is about 6511.7906139556. The cubic root of 42403417 is about 348.7120472739.

The spelling of 42403417 in words is "forty-two million, four hundred three thousand, four hundred seventeen".

Divisors: 1 7 331 2317 18301 128107 6057631 42403417