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142142020545101 = 23671495691087981
BaseRepresentation
bin100000010100011100000100…
…101001000110101001001101
3200122021122101210210121010012
4200110130010221012221031
5122112323324224420401
61222151050501123005
741640264530354363
oct4024340451065115
9618248353717105
10142142020545101
1141322101a65655
1213b380ab0b9465
136140c20325675
1427159d3891633
1511676907aa8bb
hex814704a46a4d

142142020545101 has 32 divisors (see below), whose sum is σ = 151812656352000. Its totient is φ = 132799848445440.

The previous prime is 142142020545061. The next prime is 142142020545139. The reversal of 142142020545101 is 101545020241241.

It is a cyclic number.

It is not a de Polignac number, because 142142020545101 - 26 = 142142020545037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142142020505101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130103531 + ... + 131191511.

It is an arithmetic number, because the mean of its divisors is an integer number (4744145511000).

Almost surely, 2142142020545101 is an apocalyptic number.

It is an amenable number.

142142020545101 is a deficient number, since it is larger than the sum of its proper divisors (9670635806899).

142142020545101 is a wasteful number, since it uses less digits than its factorization.

142142020545101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088789.

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 142142020545101 its reverse (101545020241241), we get a palindrome (243687040786342).

The spelling of 142142020545101 in words is "one hundred forty-two trillion, one hundred forty-two billion, twenty million, five hundred forty-five thousand, one hundred one".

Divisors: 1 23 67 149 569 1541 3427 9983 13087 38123 84781 229609 876829 1087981 1949963 5680327 25023563 72894727 130647521 162109169 619061189 1676578721 3728510887 10861314323 14238407347 41477099663 92240117161 249810229429 953973292249 2121522694703 6180087849787 142142020545101