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142206473 = 538332327
BaseRepresentation
bin10000111100111…
…10011000001001
3100220120211121102
420132132120021
5242401101343
622035551145
73344510063
oct1036363011
9326524542
10142206473
11732a9912
123b75b4b5
1323600756
1414c5a733
15c7403b8
hex879e609

142206473 has 8 divisors (see below), whose sum is σ = 146639808. Its totient is φ = 137838064.

The previous prime is 142206457. The next prime is 142206497. The reversal of 142206473 is 374602241.

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

It is a cyclic number.

It is not a de Polignac number, because 142206473 - 24 = 142206457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142206413) 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, 11765 + ... + 20562.

It is an arithmetic number, because the mean of its divisors is an integer number (18329976).

Almost surely, 2142206473 is an apocalyptic number.

It is an amenable number.

142206473 is a deficient number, since it is larger than the sum of its proper divisors (4433335).

142206473 is an equidigital number, since it uses as much as digits as its factorization.

142206473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32463.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 142206473 is about 11925.0355555025. The cubic root of 142206473 is about 521.9630839070.

The spelling of 142206473 in words is "one hundred forty-two million, two hundred six thousand, four hundred seventy-three".

Divisors: 1 53 83 4399 32327 1713331 2683141 142206473