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73042384 = 2419240271
BaseRepresentation
bin1000101101010…
…00100111010000
312002102221022111
410112220213100
5122144324014
611125315104
71544564362
oct426504720
9162387274
1073042384
1138259908
1220565a94
131219555c
1499b4d32
15662c2c4
hex45a89d0

73042384 has 20 divisors (see below), whose sum is σ = 148968640. Its totient is φ = 34598880.

The previous prime is 73042379. The next prime is 73042429. The reversal of 73042384 is 48324037.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 119832 + ... + 120439.

It is an arithmetic number, because the mean of its divisors is an integer number (7448432).

Almost surely, 273042384 is an apocalyptic number.

It is an amenable number.

73042384 is an abundant number, since it is smaller than the sum of its proper divisors (75926256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73042384 is a wasteful number, since it uses less digits than its factorization.

73042384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240298 (or 240292 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 73042384 is about 8546.4837213909. The cubic root of 73042384 is about 418.0147885155.

The spelling of 73042384 in words is "seventy-three million, forty-two thousand, three hundred eighty-four".

Divisors: 1 2 4 8 16 19 38 76 152 304 240271 480542 961084 1922168 3844336 4565149 9130298 18260596 36521192 73042384