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142246607790 = 23574714412017
BaseRepresentation
bin1000010001111010001…
…1101111101110101110
3111121011102002101021010
42010132203233232232
54312310112422130
6145202554250050
713164001134150
oct2043643575656
9447142071233
10142246607790
11553655578a1
122369a126926
131054c161a11
146c55b5cad0
153a780980b0
hex211e8efbae

142246607790 has 64 divisors (see below), whose sum is σ = 398463473664. Its totient is φ = 31821731328.

The previous prime is 142246607777. The next prime is 142246607807. The reversal of 142246607790 is 97706642241.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7196139 + ... + 7215878.

It is an arithmetic number, because the mean of its divisors is an integer number (6225991776).

Almost surely, 2142246607790 is an apocalyptic number.

142246607790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142246607790 is an abundant number, since it is smaller than the sum of its proper divisors (256216865874).

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

142246607790 is a wasteful number, since it uses less digits than its factorization.

142246607790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412081.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 142246607790 in words is "one hundred forty-two billion, two hundred forty-six million, six hundred seven thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 47 70 94 105 141 210 235 282 329 470 658 705 987 1410 1645 1974 3290 4935 9870 14412017 28824034 43236051 72060085 86472102 100884119 144120170 201768238 216180255 302652357 432360510 504420595 605304714 677364799 1008841190 1354729598 1513261785 2032094397 3026523570 3386823995 4064188794 4741553593 6773647990 9483107186 10160471985 14224660779 20320943970 23707767965 28449321558 47415535930 71123303895 142246607790