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142122050 = 252738287
BaseRepresentation
bin10000111100010…
…01110001000010
3100220102112210122
420132021301002
5242340401200
622034100242
73344006000
oct1036116102
9326375718
10142122050
1173251444
123b71a682
13235a11b5
1414c37a70
15c725385
hex8789c42

142122050 has 48 divisors (see below), whose sum is σ = 308313600. Its totient is φ = 48721680.

The previous prime is 142122047. The next prime is 142122059. The reversal of 142122050 is 50221241.

It is not an unprimeable number, because it can be changed into a prime (142122059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13007 + ... + 21293.

It is an arithmetic number, because the mean of its divisors is an integer number (6423200).

Almost surely, 2142122050 is an apocalyptic number.

142122050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142122050 is an abundant number, since it is smaller than the sum of its proper divisors (166191550).

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

142122050 is an equidigital number, since it uses as much as digits as its factorization.

142122050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320 (or 8301 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 142122050 is about 11921.4952921184. The cubic root of 142122050 is about 521.8597730626.

Adding to 142122050 its reverse (50221241), we get a palindrome (192343291).

The spelling of 142122050 in words is "one hundred forty-two million, one hundred twenty-two thousand, fifty".

Divisors: 1 2 5 7 10 14 25 35 49 50 70 98 175 245 343 350 490 686 1225 1715 2450 3430 8287 8575 16574 17150 41435 58009 82870 116018 207175 290045 406063 414350 580090 812126 1450225 2030315 2842441 2900450 4060630 5684882 10151575 14212205 20303150 28424410 71061025 142122050