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142243441144 = 23715116821599
BaseRepresentation
bin1000010001111001011…
…1101010100111111000
3111121011012010111102221
42010132113222213320
54312303310104034
6145202402333424
713163632205020
oct2043627524770
9447135114387
10142243441144
1155363794732
122369905a274
131054b5c356c
146c55576a80
153a77b6ebb4
hex211e5ea9f8

142243441144 has 32 divisors (see below), whose sum is σ = 306825984000. Its totient is φ = 60557752800.

The previous prime is 142243441139. The next prime is 142243441147. The reversal of 142243441144 is 441144342241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142243441147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8402344 + ... + 8419255.

It is an arithmetic number, because the mean of its divisors is an integer number (9588312000).

Almost surely, 2142243441144 is an apocalyptic number.

142243441144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142243441144 is an abundant number, since it is smaller than the sum of its proper divisors (164582542856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142243441144 is a wasteful number, since it uses less digits than its factorization.

142243441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16821763 (or 16821759 counting only the distinct ones).

The product of its digits is 49152, while the sum is 34.

Adding to 142243441144 its reverse (441144342241), we get a palindrome (583387783385).

The spelling of 142243441144 in words is "one hundred forty-two billion, two hundred forty-three million, four hundred forty-one thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 14 28 56 151 302 604 1057 1208 2114 4228 8456 16821599 33643198 67286396 117751193 134572792 235502386 471004772 942009544 2540061449 5080122898 10160245796 17780430143 20320491592 35560860286 71121720572 142243441144