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143900 = 22521439
BaseRepresentation
bin100011001000011100
321022101122
4203020130
514101100
63030112
71136351
oct431034
9238348
10143900
1199129
126b338
1350663
143a628
152c985
hex2321c

143900 has 18 divisors (see below), whose sum is σ = 312480. Its totient is φ = 57520.

The previous prime is 143881. The next prime is 143909. The reversal of 143900 is 9341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 620 + ... + 819.

It is an arithmetic number, because the mean of its divisors is an integer number (17360).

2143900 is an apocalyptic number.

143900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143900 is an abundant number, since it is smaller than the sum of its proper divisors (168580).

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

143900 is a wasteful number, since it uses less digits than its factorization.

143900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453 (or 1446 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 143900 is about 379.3415347678. The cubic root of 143900 is about 52.4026920125.

The spelling of 143900 in words is "one hundred forty-three thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1439 2878 5756 7195 14390 28780 35975 71950 143900