Search a number
-
+
143056131 = 3156730431
BaseRepresentation
bin10001000011011…
…01110100000011
3100222012000010020
420201231310003
5243110244011
622110104523
73354646161
oct1041556403
9328160106
10143056131
117382a209
123baab143
132383a3ca
1414ddc231
15c85c006
hex886dd03

143056131 has 8 divisors (see below), whose sum is σ = 190869504. Its totient is φ = 95306760.

The previous prime is 143056091. The next prime is 143056153. The reversal of 143056131 is 131650341.

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

It is not a de Polignac number, because 143056131 - 211 = 143054083 is a prime.

It is a super-2 number, since 2×1430561312 = 40930113233378322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143056231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10515 + ... + 19916.

It is an arithmetic number, because the mean of its divisors is an integer number (23858688).

Almost surely, 2143056131 is an apocalyptic number.

143056131 is a deficient number, since it is larger than the sum of its proper divisors (47813373).

143056131 is a wasteful number, since it uses less digits than its factorization.

143056131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32001.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 143056131 is about 11960.6074678505. The cubic root of 143056131 is about 523.0005654483. Note that the first 3 decimals are identical.

The spelling of 143056131 in words is "one hundred forty-three million, fifty-six thousand, one hundred thirty-one".

Divisors: 1 3 1567 4701 30431 91293 47685377 143056131