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42708345 = 354216763
BaseRepresentation
bin1010001011101…
…0110101111001
32222100210211120
42202322311321
541413131340
64123215453
71026005061
oct242726571
988323746
1042708345
1122120459
1212377589
138b04514
14595a3a1
153b394d0
hex28bad79

42708345 has 16 divisors (see below), whose sum is σ = 68505792. Its totient is φ = 22720320.

The previous prime is 42708343. The next prime is 42708349. The reversal of 42708345 is 54380724.

It is not a de Polignac number, because 42708345 - 21 = 42708343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42708343) 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, 2934 + ... + 9696.

It is an arithmetic number, because the mean of its divisors is an integer number (4281612).

Almost surely, 242708345 is an apocalyptic number.

It is an amenable number.

42708345 is a deficient number, since it is larger than the sum of its proper divisors (25797447).

42708345 is a wasteful number, since it uses less digits than its factorization.

42708345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7192.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 42708345 is about 6535.1622015066. The cubic root of 42708345 is about 349.5459281723.

The spelling of 42708345 in words is "forty-two million, seven hundred eight thousand, three hundred forty-five".

Divisors: 1 3 5 15 421 1263 2105 6315 6763 20289 33815 101445 2847223 8541669 14236115 42708345