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142857500 = 225457143
BaseRepresentation
bin10001000001111…
…01010100011100
3100221210220122112
420200331110130
5243032420000
622101533152
73353161112
oct1040752434
9327726575
10142857500
1173703a55
123ba141b8
132379ab86
1414d89ab2
15c81d235
hex883d51c

142857500 has 30 divisors (see below), whose sum is σ = 312406248. Its totient is φ = 57142000.

The previous prime is 142857499. The next prime is 142857503. The reversal of 142857500 is 5758241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142857503) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 26072 + ... + 31071.

Almost surely, 2142857500 is an apocalyptic number.

142857500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142857500 is an abundant number, since it is smaller than the sum of its proper divisors (169548748).

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

142857500 is an equidigital number, since it uses as much as digits as its factorization.

142857500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57167 (or 57150 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 142857500 is about 11952.3010336922. The cubic root of 142857500 is about 522.7583942060.

The spelling of 142857500 in words is "one hundred forty-two million, eight hundred fifty-seven thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 625 1250 2500 57143 114286 228572 285715 571430 1142860 1428575 2857150 5714300 7142875 14285750 28571500 35714375 71428750 142857500