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143916 = 22367179
BaseRepresentation
bin100011001000101100
321022102020
4203020230
514101131
63030140
71136403
oct431054
9238366
10143916
1199143
126b350
1350676
143a63a
152c996
hex2322c

143916 has 24 divisors (see below), whose sum is σ = 342720. Its totient is φ = 46992.

The previous prime is 143909. The next prime is 143947. The reversal of 143916 is 619341.

143916 is a nontrivial binomial coefficient, being equal to C(537, 2).

It is an unprimeable number.

143916 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 715 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (14280).

2143916 is an apocalyptic number.

143916 is the 536-th triangular number.

It is an amenable number.

143916 is an abundant number, since it is smaller than the sum of its proper divisors (198804).

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

143916 is a wasteful number, since it uses less digits than its factorization.

143916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253 (or 251 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

The square root of 143916 is about 379.3626233566. The cubic root of 143916 is about 52.4046341297.

The spelling of 143916 in words is "one hundred forty-three thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 67 134 179 201 268 358 402 537 716 804 1074 2148 11993 23986 35979 47972 71958 143916