Search a number
-
+
143801189 = 7131156817
BaseRepresentation
bin10001001001000…
…11101101100101
3101000120212010222
420210203231211
5243303114224
622134054125
73364201310
oct1044435545
9330525128
10143801189
1174198a64
12401aa345
1323a3b57c
1415153977
15c957b5e
hex8923b65

143801189 has 8 divisors (see below), whose sum is σ = 165599808. Its totient is φ = 122316480.

The previous prime is 143801179. The next prime is 143801197. The reversal of 143801189 is 981108341.

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 143801189 - 24 = 143801173 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 (143801179) 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 7 ways as a sum of consecutive naturals, for example, 77492 + ... + 79325.

It is an arithmetic number, because the mean of its divisors is an integer number (20699976).

Almost surely, 2143801189 is an apocalyptic number.

It is an amenable number.

143801189 is a deficient number, since it is larger than the sum of its proper divisors (21798619).

143801189 is a wasteful number, since it uses less digits than its factorization.

143801189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156955.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 143801189 is about 11991.7133471410. The cubic root of 143801189 is about 523.9069491260.

The spelling of 143801189 in words is "one hundred forty-three million, eight hundred one thousand, one hundred eighty-nine".

Divisors: 1 7 131 917 156817 1097719 20543027 143801189