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145132563 = 348377521
BaseRepresentation
bin10001010011010…
…00110000010011
3101010002111110010
420221220300103
5244123220223
622222410003
73411415002
oct1051506023
9333074403
10145132563
1174a18274
1240730903
13240b6574
14153bcc39
15cb1c393
hex8a68c13

145132563 has 4 divisors (see below), whose sum is σ = 193510088. Its totient is φ = 96755040.

The previous prime is 145132543. The next prime is 145132573. The reversal of 145132563 is 365231541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365231541 = 3121743847.

It is not a de Polignac number, because 145132563 - 218 = 144870419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145132563.

It is not an unprimeable number, because it can be changed into a prime (145132513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24188758 + ... + 24188763.

It is an arithmetic number, because the mean of its divisors is an integer number (48377522).

Almost surely, 2145132563 is an apocalyptic number.

145132563 is a deficient number, since it is larger than the sum of its proper divisors (48377525).

145132563 is an equidigital number, since it uses as much as digits as its factorization.

145132563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48377524.

The product of its digits is 10800, while the sum is 30.

The square root of 145132563 is about 12047.0977002762. The cubic root of 145132563 is about 525.5188376504.

The spelling of 145132563 in words is "one hundred forty-five million, one hundred thirty-two thousand, five hundred sixty-three".

Divisors: 1 3 48377521 145132563