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142140130442 = 2659107845319
BaseRepresentation
bin1000010001100000110…
…1100100010010001010
3111120212222201202210122
42010120031210102022
54312100333133232
6145144232143242
713161236113442
oct2043015442212
9446788652718
10142140130442
1155310441892
122366a537b22
1310533090b7b
146c45963122
153a6da64312
hex211836448a

142140130442 has 8 divisors (see below), whose sum is σ = 213533733600. Its totient is φ = 70962219244.

The previous prime is 142140130373. The next prime is 142140130459. The reversal of 142140130442 is 244031041241.

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

It is an unprimeable number.

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, 53921342 + ... + 53923977.

It is an arithmetic number, because the mean of its divisors is an integer number (26691716700).

Almost surely, 2142140130442 is an apocalyptic number.

142140130442 is a deficient number, since it is larger than the sum of its proper divisors (71393603158).

142140130442 is a wasteful number, since it uses less digits than its factorization.

142140130442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107845980.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 142140130442 its reverse (244031041241), we get a palindrome (386171171683).

The spelling of 142140130442 in words is "one hundred forty-two billion, one hundred forty million, one hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 659 1318 107845319 215690638 71070065221 142140130442