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142023131243 = 7379247321647
BaseRepresentation
bin1000010001000100111…
…1010000000001101011
3111120120211120121001222
42010101033100001223
54311330410144433
6145124452332255
713155315461060
oct2042117200153
9446524517058
10142023131243
115526039a634
122363731408b
1310514a77a86
146c341c8c67
153a63652b98
hex21113d006b

142023131243 has 16 divisors (see below), whose sum is σ = 162813742080. Its totient is φ = 121358212416.

The previous prime is 142023131221. The next prime is 142023131267. The reversal of 142023131243 is 342131320241.

It is not a de Polignac number, because 142023131243 - 28 = 142023130987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142023131543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6550046 + ... + 6571692.

It is an arithmetic number, because the mean of its divisors is an integer number (10175858880).

Almost surely, 2142023131243 is an apocalyptic number.

142023131243 is a deficient number, since it is larger than the sum of its proper divisors (20790610837).

142023131243 is a wasteful number, since it uses less digits than its factorization.

142023131243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24506.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 142023131243 its reverse (342131320241), we get a palindrome (484154451484).

The spelling of 142023131243 in words is "one hundred forty-two billion, twenty-three million, one hundred thirty-one thousand, two hundred forty-three".

Divisors: 1 7 379 2473 2653 17311 21647 151529 937267 6560869 8204213 53533031 57429491 374731217 20289018749 142023131243