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143448142 = 21710938707
BaseRepresentation
bin10001000110011…
…01100001001110
3100222220220212011
420203031201032
5243210320032
622122331434
73361201105
oct1043154116
9328826764
10143448142
1173a77792
1240059b7a
1323946976
14150a103c
15c8d8247
hex88cd84e

143448142 has 16 divisors (see below), whose sum is σ = 229925520. Its totient is φ = 66883968.

The previous prime is 143448133. The next prime is 143448163. The reversal of 143448142 is 241844341.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15648 + ... + 23059.

It is an arithmetic number, because the mean of its divisors is an integer number (14370345).

Almost surely, 2143448142 is an apocalyptic number.

143448142 is a deficient number, since it is larger than the sum of its proper divisors (86477378).

143448142 is a wasteful number, since it uses less digits than its factorization.

143448142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38835.

The product of its digits is 12288, while the sum is 31.

The square root of 143448142 is about 11976.9838440235. The cubic root of 143448142 is about 523.4778489375.

The spelling of 143448142 in words is "one hundred forty-three million, four hundred forty-eight thousand, one hundred forty-two".

Divisors: 1 2 17 34 109 218 1853 3706 38707 77414 658019 1316038 4219063 8438126 71724071 143448142