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142355341241231 = 806771764509603
BaseRepresentation
bin100000010111100010101111…
…100010111110101110001111
3200200001001000111022202110112
4200113202233202332232033
5122124322214324204411
61222433050240030235
741661556030354226
oct4027425742765617
9620031014282415
10142355341241231
11413a4619a30a28
1213b7150390237b
1361580882ac551
14272206cb3bcbd
15116cec83ccb8b
hex8178af8beb8f

142355341241231 has 4 divisors (see below), whose sum is σ = 142357105831512. Its totient is φ = 142353576650952.

The previous prime is 142355341241149. The next prime is 142355341241257. The reversal of 142355341241231 is 132142143553241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142355341241231 is a prime.

It is a super-2 number, since 2×1423553412412312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142355341241131) 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, 882174125 + ... + 882335478.

It is an arithmetic number, because the mean of its divisors is an integer number (35589276457878).

Almost surely, 2142355341241231 is an apocalyptic number.

142355341241231 is a deficient number, since it is larger than the sum of its proper divisors (1764590281).

142355341241231 is an equidigital number, since it uses as much as digits as its factorization.

142355341241231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764590280.

The product of its digits is 345600, while the sum is 41.

Adding to 142355341241231 its reverse (132142143553241), we get a palindrome (274497484794472).

The spelling of 142355341241231 in words is "one hundred forty-two trillion, three hundred fifty-five billion, three hundred forty-one million, two hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 80677 1764509603 142355341241231