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145286743 = 7171220897
BaseRepresentation
bin10001010100011…
…10011001010111
3101010101022221111
420222032121113
5244143133433
622225555451
73412626340
oct1052163127
9333338844
10145286743
1175013098
12407a5b87
132413b7b4
141541d0c7
15cb4cdcd
hex8a8e657

145286743 has 8 divisors (see below), whose sum is σ = 175809312. Its totient is φ = 117206016.

The previous prime is 145286731. The next prime is 145286747. The reversal of 145286743 is 347682541.

145286743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145286743 is a prime.

It is a super-2 number, since 2×1452867432 = 42216475383096098, which contains 22 as substring.

It is a zygodrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 145286696 and 145286705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145286747) 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, 610330 + ... + 610567.

It is an arithmetic number, because the mean of its divisors is an integer number (21976164).

Almost surely, 2145286743 is an apocalyptic number.

145286743 is a deficient number, since it is larger than the sum of its proper divisors (30522569).

145286743 is a wasteful number, since it uses less digits than its factorization.

145286743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220921.

The product of its digits is 161280, while the sum is 40.

The square root of 145286743 is about 12053.4950533030. The cubic root of 145286743 is about 525.7048648653.

The spelling of 145286743 in words is "one hundred forty-five million, two hundred eighty-six thousand, seven hundred forty-three".

Divisors: 1 7 17 119 1220897 8546279 20755249 145286743