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42951769 = 78836949
BaseRepresentation
bin1010001111011…
…0010001011001
32222211011202021
42203312101121
541443424034
64132334441
71031040550
oct243662131
988734667
1042951769
1122277333
1212474421
138b8b263
1459c0d97
153b866b4
hex28f6459

42951769 has 8 divisors (see below), whose sum is σ = 49150400. Its totient is φ = 36768816.

The previous prime is 42951767. The next prime is 42951773. The reversal of 42951769 is 96715924.

It is a happy number.

42951769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42951769 - 21 = 42951767 is a prime.

It is a super-2 number, since 2×429517692 = 3689708920458722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (42951763) 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 7 ways as a sum of consecutive naturals, for example, 2707 + ... + 9655.

It is an arithmetic number, because the mean of its divisors is an integer number (6143800).

Almost surely, 242951769 is an apocalyptic number.

It is an amenable number.

42951769 is a deficient number, since it is larger than the sum of its proper divisors (6198631).

42951769 is an equidigital number, since it uses as much as digits as its factorization.

42951769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7839.

The product of its digits is 136080, while the sum is 43.

The square root of 42951769 is about 6553.7599132101. The cubic root of 42951769 is about 350.2087706842.

The spelling of 42951769 in words is "forty-two million, nine hundred fifty-one thousand, seven hundred sixty-nine".

Divisors: 1 7 883 6181 6949 48643 6135967 42951769