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143911941 = 3113424519
BaseRepresentation
bin10001001001111…
…10110000000101
3101000210111001220
420210332300011
5243320140231
622140310553
73365142225
oct1044766005
9330714056
10143911941
1174264198
1240242459
1323a79ac4
1415182085
15c97a896
hex893ec05

143911941 has 8 divisors (see below), whose sum is σ = 193581120. Its totient is φ = 95092032.

The previous prime is 143911939. The next prime is 143912011. The reversal of 143911941 is 149119341.

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

It is not a de Polignac number, because 143911941 - 21 = 143911939 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143911441) 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, 211921 + ... + 212598.

It is an arithmetic number, because the mean of its divisors is an integer number (24197640).

Almost surely, 2143911941 is an apocalyptic number.

It is an amenable number.

143911941 is a deficient number, since it is larger than the sum of its proper divisors (49669179).

143911941 is a wasteful number, since it uses less digits than its factorization.

143911941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424635.

The product of its digits is 3888, while the sum is 33.

The square root of 143911941 is about 11996.3303138918. The cubic root of 143911941 is about 524.0414145248.

The spelling of 143911941 in words is "one hundred forty-three million, nine hundred eleven thousand, nine hundred forty-one".

Divisors: 1 3 113 339 424519 1273557 47970647 143911941