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142279305470 = 2517836937091
BaseRepresentation
bin1000010010000010000…
…0011110100011111110
3111121020200121121001022
42010200200132203332
54312342000233340
6145210123144142
713164546066521
oct2044040364376
9447220547038
10142279305470
1155381a60075
12236a9075052
1310555b6c863
146c5a230bb8
153a7ada63b5
hex212081e8fe

142279305470 has 16 divisors (see below), whose sum is σ = 271167617808. Its totient is φ = 53563973760.

The previous prime is 142279305449. The next prime is 142279305473. The reversal of 142279305470 is 74503972241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142279305473) 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, 418468376 + ... + 418468715.

It is an arithmetic number, because the mean of its divisors is an integer number (16947976113).

Almost surely, 2142279305470 is an apocalyptic number.

142279305470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142279305470 is a deficient number, since it is larger than the sum of its proper divisors (128888312338).

142279305470 is a wasteful number, since it uses less digits than its factorization.

142279305470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836937115.

The product of its (nonzero) digits is 423360, while the sum is 44.

The spelling of 142279305470 in words is "one hundred forty-two billion, two hundred seventy-nine million, three hundred five thousand, four hundred seventy".

Divisors: 1 2 5 10 17 34 85 170 836937091 1673874182 4184685455 8369370910 14227930547 28455861094 71139652735 142279305470