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142250078789 = 7133150425409
BaseRepresentation
bin1000010001111011000…
…0111111001001000101
3111121011122121201120122
42010132300333021011
54312312010010124
6145203200511325
713164042501530
oct2043660771105
9447148551518
10142250078789
1155367508695
122369b31b545
131054caa8870
146c563c3a17
153a7853175e
hex211ec3f245

142250078789 has 16 divisors (see below), whose sum is σ = 180724669440. Its totient is φ = 108918881280.

The previous prime is 142250078779. The next prime is 142250078819. The reversal of 142250078789 is 987870052241.

It is a cyclic number.

It is not a de Polignac number, because 142250078789 - 28 = 142250078533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142250078789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142250078779) 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, 25209884 + ... + 25215525.

It is an arithmetic number, because the mean of its divisors is an integer number (11295291840).

Almost surely, 2142250078789 is an apocalyptic number.

It is an amenable number.

142250078789 is a deficient number, since it is larger than the sum of its proper divisors (38474590651).

142250078789 is a wasteful number, since it uses less digits than its factorization.

142250078789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50425460.

The product of its (nonzero) digits is 2257920, while the sum is 53.

The spelling of 142250078789 in words is "one hundred forty-two billion, two hundred fifty million, seventy-eight thousand, seven hundred eighty-nine".

Divisors: 1 7 13 31 91 217 403 2821 50425409 352977863 655530317 1563187679 4588712219 10942313753 20321439827 142250078789