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142050073 = 1112913643
BaseRepresentation
bin10000111011110…
…00001100011001
3100220021220001211
420131320030121
5242331100243
622032343121
73343256104
oct1035701431
9326256054
10142050073
1173202360
123b6a4aa1
13235774c9
1414c1973b
15c70dd9d
hex8778319

142050073 has 4 divisors (see below), whose sum is σ = 154963728. Its totient is φ = 129136420.

The previous prime is 142050049. The next prime is 142050109. The reversal of 142050073 is 370050241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142050073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142050373) 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 3 ways as a sum of consecutive naturals, for example, 6456811 + ... + 6456832.

It is an arithmetic number, because the mean of its divisors is an integer number (38740932).

Almost surely, 2142050073 is an apocalyptic number.

It is an amenable number.

142050073 is a deficient number, since it is larger than the sum of its proper divisors (12913655).

142050073 is a wasteful number, since it uses less digits than its factorization.

142050073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12913654.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 142050073 is about 11918.4761190347. The cubic root of 142050073 is about 521.7716604306.

The spelling of 142050073 in words is "one hundred forty-two million, fifty thousand, seventy-three".

Divisors: 1 11 12913643 142050073