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145053544 = 2378723039
BaseRepresentation
bin10001010010101…
…01011101101000
3101002221111001111
420221111131220
5244113203134
622221000104
73410635426
oct1051253550
9332844044
10145053544
1174973969
12406b3034
13240895cc
141539c116
15cb03c64
hex8a55768

145053544 has 16 divisors (see below), whose sum is σ = 272332800. Its totient is φ = 72431472.

The previous prime is 145053541. The next prime is 145053551. The reversal of 145053544 is 445350541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145053541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5224 + ... + 17815.

It is an arithmetic number, because the mean of its divisors is an integer number (17020800).

Almost surely, 2145053544 is an apocalyptic number.

It is an amenable number.

145053544 is a deficient number, since it is larger than the sum of its proper divisors (127279256).

145053544 is a wasteful number, since it uses less digits than its factorization.

145053544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23832 (or 23828 counting only the distinct ones).

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

The square root of 145053544 is about 12043.8176671685. The cubic root of 145053544 is about 525.4234455231.

The spelling of 145053544 in words is "one hundred forty-five million, fifty-three thousand, five hundred forty-four".

Divisors: 1 2 4 8 787 1574 3148 6296 23039 46078 92156 184312 18131693 36263386 72526772 145053544