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143021101 = 1994611559
BaseRepresentation
bin10001000011001…
…01010000101101
3100222010020001211
420201211100231
5243103133401
622105234421
73354442066
oct1041452055
9328106054
10143021101
1173805963
123ba92a11
1323827492
1414dcd56d
15c851951
hex886542d

143021101 has 8 divisors (see below), whose sum is σ = 144144000. Its totient is φ = 141902640.

The previous prime is 143021093. The next prime is 143021117. The reversal of 143021101 is 101120341.

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

It is a cyclic number.

It is not a de Polignac number, because 143021101 - 23 = 143021093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143021171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90960 + ... + 92518.

It is an arithmetic number, because the mean of its divisors is an integer number (18018000).

Almost surely, 2143021101 is an apocalyptic number.

It is an amenable number.

143021101 is a deficient number, since it is larger than the sum of its proper divisors (1122899).

143021101 is a wasteful number, since it uses less digits than its factorization.

143021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 143021101 is about 11959.1429876894. The cubic root of 143021101 is about 522.9578731026.

Adding to 143021101 its reverse (101120341), we get a palindrome (244141442).

The spelling of 143021101 in words is "one hundred forty-three million, twenty-one thousand, one hundred one".

Divisors: 1 199 461 1559 91739 310241 718699 143021101