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145744483 = 824317681
BaseRepresentation
bin10001010111111…
…10001001100011
3101011020120211211
420223332021203
5244302310413
622243450551
73416544013
oct1053761143
9334216754
10145744483
11752a5a95
1240986a57
132426bc51
14154dbc43
15cbdd83d
hex8afe263

145744483 has 4 divisors (see below), whose sum is σ = 145770408. Its totient is φ = 145718560.

The previous prime is 145744477. The next prime is 145744507. The reversal of 145744483 is 384447541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 384447541 = 675738023.

It is a cyclic number.

It is not a de Polignac number, because 145744483 - 225 = 112190051 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145744783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598 + ... + 17083.

It is an arithmetic number, because the mean of its divisors is an integer number (36442602).

Almost surely, 2145744483 is an apocalyptic number.

145744483 is a deficient number, since it is larger than the sum of its proper divisors (25925).

145744483 is an equidigital number, since it uses as much as digits as its factorization.

145744483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25924.

The product of its digits is 215040, while the sum is 40.

The square root of 145744483 is about 12072.4679746935. The cubic root of 145744483 is about 526.2563808202.

The spelling of 145744483 in words is "one hundred forty-five million, seven hundred forty-four thousand, four hundred eighty-three".

Divisors: 1 8243 17681 145744483