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143013801 = 3723073169
BaseRepresentation
bin10001000011000…
…11011110101001
3100222002212001110
420201203132221
5243102420201
622105140533
73354411600
oct1041433651
9328085043
10143013801
1173800427
123ba8a749
1323824068
1414dcaa37
15c84e6d6
hex88637a9

143013801 has 24 divisors (see below), whose sum is σ = 222610080. Its totient is φ = 81430272.

The previous prime is 143013799. The next prime is 143013821. The reversal of 143013801 is 108310341.

It is not a de Polignac number, because 143013801 - 21 = 143013799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143013821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43545 + ... + 46713.

It is an arithmetic number, because the mean of its divisors is an integer number (9275420).

Almost surely, 2143013801 is an apocalyptic number.

It is an amenable number.

143013801 is a deficient number, since it is larger than the sum of its proper divisors (79596279).

143013801 is a wasteful number, since it uses less digits than its factorization.

143013801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3493 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 143013801 is about 11958.8377779783. The cubic root of 143013801 is about 522.9489754471.

The spelling of 143013801 in words is "one hundred forty-three million, thirteen thousand, eight hundred one".

Divisors: 1 3 7 21 49 147 307 921 2149 3169 6447 9507 15043 22183 45129 66549 155281 465843 972883 2918649 6810181 20430543 47671267 143013801