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142455227145 = 35711123337859
BaseRepresentation
bin1000010010101011111…
…1100100001100001001
3111121200221122100012220
42010222333210030021
54313222014232040
6145235405524253
713202113310640
oct2045277441411
9447627570186
10142455227145
1155462297690
1223737b73689
131058344631a
146c75746357
153a8b5562d0
hex212afe4309

142455227145 has 32 divisors (see below), whose sum is σ = 284170429440. Its totient is φ = 59202171840.

The previous prime is 142455227129. The next prime is 142455227147. The reversal of 142455227145 is 541722554241.

It is not a de Polignac number, because 142455227145 - 24 = 142455227129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142455227097 and 142455227106.

It is not an unprimeable number, because it can be changed into a prime (142455227147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61667775 + ... + 61670084.

It is an arithmetic number, because the mean of its divisors is an integer number (8880325920).

Almost surely, 2142455227145 is an apocalyptic number.

142455227145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142455227145 is a deficient number, since it is larger than the sum of its proper divisors (141715202295).

142455227145 is a wasteful number, since it uses less digits than its factorization.

142455227145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123337885.

The product of its digits is 448000, while the sum is 42.

The spelling of 142455227145 in words is "one hundred forty-two billion, four hundred fifty-five million, two hundred twenty-seven thousand, one hundred forty-five".

Divisors: 1 3 5 7 11 15 21 33 35 55 77 105 165 231 385 1155 123337859 370013577 616689295 863365013 1356716449 1850067885 2590095039 4070149347 4316825065 6783582245 9497015143 12950475195 20350746735 28491045429 47485075715 142455227145