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42819038 = 288724137
BaseRepresentation
bin1010001101010…
…1110111011110
32222120102200022
42203111313132
541430202123
64125432142
71026645563
oct243256736
988512608
1042819038
1122196639
121240b652
138b42a12
14598886a
153b5c1c8
hex28d5dde

42819038 has 8 divisors (see below), whose sum is σ = 64303632. Its totient is φ = 21384496.

The previous prime is 42819037. The next prime is 42819043. The reversal of 42819038 is 83091824.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 42818989 and 42819007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42819037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10295 + ... + 13842.

It is an arithmetic number, because the mean of its divisors is an integer number (8037954).

Almost surely, 242819038 is an apocalyptic number.

42819038 is a deficient number, since it is larger than the sum of its proper divisors (21484594).

42819038 is a wasteful number, since it uses less digits than its factorization.

42819038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25026.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 42819038 is about 6543.6257533572. The cubic root of 42819038 is about 349.8476561482.

The spelling of 42819038 in words is "forty-two million, eight hundred nineteen thousand, thirty-eight".

Divisors: 1 2 887 1774 24137 48274 21409519 42819038