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142802850 = 23521735503
BaseRepresentation
bin10001000001011…
…11111110100010
3100221201010200110
420200233332202
5243024142400
622100432150
73352542561
oct1040577642
9327633613
10142802850
1173676993
123b9a8656
132377c038
1414d73bd8
15c80be50
hex882ffa2

142802850 has 48 divisors (see below), whose sum is σ = 356262912. Its totient is φ = 37853760.

The previous prime is 142802843. The next prime is 142802861. The reversal of 142802850 is 58208241.

142802850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23199 + ... + 28701.

It is an arithmetic number, because the mean of its divisors is an integer number (7422144).

Almost surely, 2142802850 is an apocalyptic number.

142802850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142802850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178131456).

142802850 is an abundant number, since it is smaller than the sum of its proper divisors (213460062).

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

142802850 is a wasteful number, since it uses less digits than its factorization.

142802850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 142802850 is about 11950.0146443425. The cubic root of 142802850 is about 522.6917254627.

The spelling of 142802850 in words is "one hundred forty-two million, eight hundred two thousand, eight hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 150 173 346 519 865 1038 1730 2595 4325 5190 5503 8650 11006 12975 16509 25950 27515 33018 55030 82545 137575 165090 275150 412725 825450 952019 1904038 2856057 4760095 5712114 9520190 14280285 23800475 28560570 47600950 71401425 142802850