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143954 = 2167431
BaseRepresentation
bin100011001001010010
321022110122
4203021102
514101304
63030242
71136456
oct431122
9238418
10143954
1199178
126b382
13506a5
143a666
152c9be
hex23252

143954 has 8 divisors (see below), whose sum is σ = 217728. Its totient is φ = 71380.

The previous prime is 143953. The next prime is 143971. The reversal of 143954 is 459341.

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

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 44 + 9 + 33 + 57 + 48 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143954.

It is not an unprimeable number, because it can be changed into a prime (143953) 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 3 ways as a sum of consecutive naturals, for example, 119 + ... + 549.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2143954 is an apocalyptic number.

143954 is a deficient number, since it is larger than the sum of its proper divisors (73774).

143954 is a wasteful number, since it uses less digits than its factorization.

143954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600.

The product of its digits is 2160, while the sum is 26.

The square root of 143954 is about 379.4127040572. The cubic root of 143954 is about 52.4092460813.

The spelling of 143954 in words is "one hundred forty-three thousand, nine hundred fifty-four".

Divisors: 1 2 167 334 431 862 71977 143954