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142474850 = 2527258153
BaseRepresentation
bin10000111110111…
…11111001100010
3100221002110202022
420133133321202
5242433143400
622045421442
73350005400
oct1037377142
9327073668
10142474850
1173472511
123b86a882
132369595b
1414cca470
15c794b85
hex87dfe62

142474850 has 36 divisors (see below), whose sum is σ = 308274354. Its totient is φ = 48847680.

The previous prime is 142474847. The next prime is 142474873. The reversal of 142474850 is 58474241.

It can be written as a sum of positive squares in 3 ways, for example, as 53304601 + 89170249 = 7301^2 + 9443^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142474850.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 26627 + ... + 31526.

Almost surely, 2142474850 is an apocalyptic number.

142474850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142474850 is an abundant number, since it is smaller than the sum of its proper divisors (165799504).

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

142474850 is a wasteful number, since it uses less digits than its factorization.

142474850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58179 (or 58167 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 142474850 is about 11936.2829222501. The cubic root of 142474850 is about 522.2912331883.

The spelling of 142474850 in words is "one hundred forty-two million, four hundred seventy-four thousand, eight hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 350 490 1225 2450 58153 116306 290765 407071 581530 814142 1453825 2035355 2849497 2907650 4070710 5698994 10176775 14247485 20353550 28494970 71237425 142474850