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143012 = 2235753
BaseRepresentation
bin100010111010100100
321021011202
4202322210
514034022
63022032
71133642
oct427244
9237152
10143012
11984a1
126a918
135012c
143a192
152c592
hex22ea4

143012 has 6 divisors (see below), whose sum is σ = 250278. Its totient is φ = 71504.

The previous prime is 142993. The next prime is 143053. The reversal of 143012 is 210341.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 139876 + 3136 = 374^2 + 56^2 .

It is a super-3 number, since 3×1430123 = 8774829677333184, which contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 142984 and 143002.

It is an unprimeable number.

143012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17873 + ... + 17880.

It is an arithmetic number, because the mean of its divisors is an integer number (41713).

2143012 is an apocalyptic number.

It is an amenable number.

143012 is a deficient number, since it is larger than the sum of its proper divisors (107266).

143012 is a wasteful number, since it uses less digits than its factorization.

143012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35757 (or 35755 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 143012 is about 378.1692742675. The cubic root of 143012 is about 52.2946780239.

Adding to 143012 its reverse (210341), we get a palindrome (353353).

The spelling of 143012 in words is "one hundred forty-three thousand, twelve", and thus it is an iban number.

Divisors: 1 2 4 35753 71506 143012