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142131203 = 1710778137
BaseRepresentation
bin10000111100011…
…00000000000011
3100220110000100122
420132030000003
5242341144303
622034210455
73344044454
oct1036140003
9326400318
10142131203
1173258305
123b723a2b
13235a5406
1414c3b12b
15c727e38
hex878c003

142131203 has 8 divisors (see below), whose sum is σ = 151900272. Its totient is φ = 132518656.

The previous prime is 142131179. The next prime is 142131217. The reversal of 142131203 is 302131241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-142131203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142131263) 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, 37250 + ... + 40887.

It is an arithmetic number, because the mean of its divisors is an integer number (18987534).

Almost surely, 2142131203 is an apocalyptic number.

142131203 is a deficient number, since it is larger than the sum of its proper divisors (9769069).

142131203 is a wasteful number, since it uses less digits than its factorization.

142131203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78261.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142131203 is about 11921.8791723453. The cubic root of 142131203 is about 521.8709758280.

Adding to 142131203 its reverse (302131241), we get a palindrome (444262444).

The spelling of 142131203 in words is "one hundred forty-two million, one hundred thirty-one thousand, two hundred three".

Divisors: 1 17 107 1819 78137 1328329 8360659 142131203