Search a number
-
+
145190743 = 236312641
BaseRepresentation
bin10001010011101…
…10111101010111
3101010012110020221
420221312331113
5244132100433
622223535211
73412046425
oct1051667527
9333173227
10145190743
1174a57a55
124075a507
1324106ba9
14153d6115
15cb2e72d
hex8a76f57

145190743 has 4 divisors (see below), whose sum is σ = 151503408. Its totient is φ = 138878080.

The previous prime is 145190741. The next prime is 145190777. The reversal of 145190743 is 347091541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347091541 = 536548897.

It is a cyclic number.

It is not a de Polignac number, because 145190743 - 21 = 145190741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145190699 and 145190708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145190741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3156298 + ... + 3156343.

It is an arithmetic number, because the mean of its divisors is an integer number (37875852).

Almost surely, 2145190743 is an apocalyptic number.

145190743 is a deficient number, since it is larger than the sum of its proper divisors (6312665).

145190743 is an equidigital number, since it uses as much as digits as its factorization.

145190743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312664.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 145190743 is about 12049.5121478008. The cubic root of 145190743 is about 525.5890507041.

The spelling of 145190743 in words is "one hundred forty-five million, one hundred ninety thousand, seven hundred forty-three".

Divisors: 1 23 6312641 145190743