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42783051 = 367212851
BaseRepresentation
bin1010001100110…
…1000101001011
32222111121022110
42203031011023
541423024201
64124553403
71026435633
oct243150513
988447273
1042783051
11221715a3
12123b2863
138b2c51c
1459796c3
153b516d6
hex28cd14b

42783051 has 8 divisors (see below), whose sum is σ = 57895744. Its totient is φ = 28096200.

The previous prime is 42783017. The next prime is 42783061. The reversal of 42783051 is 15038724.

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

It is not a de Polignac number, because 42783051 - 29 = 42782539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42783001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106225 + ... + 106626.

It is an arithmetic number, because the mean of its divisors is an integer number (7236968).

Almost surely, 242783051 is an apocalyptic number.

42783051 is a deficient number, since it is larger than the sum of its proper divisors (15112693).

42783051 is a wasteful number, since it uses less digits than its factorization.

42783051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212921.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 42783051 is about 6540.8754001280. The cubic root of 42783051 is about 349.7496195668.

The spelling of 42783051 in words is "forty-two million, seven hundred eighty-three thousand, fifty-one".

Divisors: 1 3 67 201 212851 638553 14261017 42783051