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145450543 = 731670279
BaseRepresentation
bin10001010101101…
…10011000101111
3101010200122122011
420222312120233
5244213404133
622233302051
73414211030
oct1052663057
9333618564
10145450543
1175115167
1240864927
1324198214
1415462a87
15cb816cd
hex8ab662f

145450543 has 8 divisors (see below), whose sum is σ = 171591680. Its totient is φ = 120650040.

The previous prime is 145450531. The next prime is 145450559. The reversal of 145450543 is 345054541.

It is a happy number.

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

It is not a de Polignac number, because 145450543 - 29 = 145450031 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145450583) 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, 334923 + ... + 335356.

It is an arithmetic number, because the mean of its divisors is an integer number (21448960).

Almost surely, 2145450543 is an apocalyptic number.

145450543 is a deficient number, since it is larger than the sum of its proper divisors (26141137).

145450543 is an equidigital number, since it uses as much as digits as its factorization.

145450543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670317.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145450543 is about 12060.2878489694. The cubic root of 145450543 is about 525.9023550476.

The spelling of 145450543 in words is "one hundred forty-five million, four hundred fifty thousand, five hundred forty-three".

Divisors: 1 7 31 217 670279 4691953 20778649 145450543