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142020424003 = 473021711149
BaseRepresentation
bin1000010001000100010…
…0111011000101000011
3111120120122111001102211
42010101010323011003
54311324212032003
6145124314322551
713155253454203
oct2042104730503
9446518431384
10142020424003
1155259910647
1223636429457
131051433a763
146c33ac2403
153a632ba96d
hex211113b143

142020424003 has 4 divisors (see below), whose sum is σ = 145042135200. Its totient is φ = 138998712808.

The previous prime is 142020424001. The next prime is 142020424009. The reversal of 142020424003 is 300424020241.

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: 300424020241 = 1915811790539.

It is a cyclic number.

It is not a de Polignac number, because 142020424003 - 21 = 142020424001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142020424001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1510855528 + ... + 1510855621.

It is an arithmetic number, because the mean of its divisors is an integer number (36260533800).

Almost surely, 2142020424003 is an apocalyptic number.

142020424003 is a deficient number, since it is larger than the sum of its proper divisors (3021711197).

142020424003 is an equidigital number, since it uses as much as digits as its factorization.

142020424003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021711196.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 142020424003 its reverse (300424020241), we get a palindrome (442444444244).

The spelling of 142020424003 in words is "one hundred forty-two billion, twenty million, four hundred twenty-four thousand, three".

Divisors: 1 47 3021711149 142020424003