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142894561006 = 271447280503
BaseRepresentation
bin1000010100010100101…
…1011111011011101110
3111122211120022210222101
42011011023133123232
54320122001423011
6145351142205314
713216026504451
oct2050513373356
9448746283871
10142894561006
115566828871a
122383b12383a
131062347a1a2
146cb7c29498
153ab4dd92c1
hex21452df6ee

142894561006 has 4 divisors (see below), whose sum is σ = 214341841512. Its totient is φ = 71447280502.

The previous prime is 142894561003. The next prime is 142894561057. The reversal of 142894561006 is 600165498241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600165498241 = 1266134740157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142894561003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35723640250 + ... + 35723640253.

It is an arithmetic number, because the mean of its divisors is an integer number (53585460378).

Almost surely, 2142894561006 is an apocalyptic number.

142894561006 is a deficient number, since it is larger than the sum of its proper divisors (71447280506).

142894561006 is an equidigital number, since it uses as much as digits as its factorization.

142894561006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71447280505.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 142894561006 in words is "one hundred forty-two billion, eight hundred ninety-four million, five hundred sixty-one thousand, six".

Divisors: 1 2 71447280503 142894561006