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143242102 = 21719221737
BaseRepresentation
bin10001000100110…
…11001101110110
3100222112110020001
420202123031312
5243132221402
622114101514
73356352313
oct1042331566
9328473201
10143242102
1173946a03
123bb7a89a
13238a3c53
1415049d0a
15c897187
hex889b376

143242102 has 16 divisors (see below), whose sum is σ = 239477040. Its totient is φ = 63859968.

The previous prime is 143242087. The next prime is 143242111. The reversal of 143242102 is 201242341.

143242102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 143242102.

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, 110223 + ... + 111514.

It is an arithmetic number, because the mean of its divisors is an integer number (14967315).

Almost surely, 2143242102 is an apocalyptic number.

143242102 is a deficient number, since it is larger than the sum of its proper divisors (96234938).

143242102 is a wasteful number, since it uses less digits than its factorization.

143242102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221775.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 143242102 is about 11968.3792553545. The cubic root of 143242102 is about 523.2270984906.

Adding to 143242102 its reverse (201242341), we get a palindrome (344484443).

It can be divided in two parts, 1432 and 42102, that added together give a palindrome (43534).

The spelling of 143242102 in words is "one hundred forty-three million, two hundred forty-two thousand, one hundred two".

Divisors: 1 2 17 19 34 38 323 646 221737 443474 3769529 4213003 7539058 8426006 71621051 143242102