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145051433 = 3711334693
BaseRepresentation
bin10001010010101…
…00111100101001
3101002221101011022
420221110330221
5244113121213
622220542225
73410626322
oct1051247451
9332841138
10145051433
117497231a
12406b1975
1324088667
141539b449
15cb03308
hex8a54f29

145051433 has 8 divisors (see below), whose sum is σ = 150294408. Its totient is φ = 139878144.

The previous prime is 145051391. The next prime is 145051451. The reversal of 145051433 is 334150541.

It can be written as a sum of positive squares in 4 ways, for example, as 18983449 + 126067984 = 4357^2 + 11228^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 145051433 - 26 = 145051369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145051483) 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 7 ways as a sum of consecutive naturals, for example, 13166 + ... + 21527.

It is an arithmetic number, because the mean of its divisors is an integer number (18786801).

Almost surely, 2145051433 is an apocalyptic number.

It is an amenable number.

145051433 is a deficient number, since it is larger than the sum of its proper divisors (5242975).

145051433 is a wasteful number, since it uses less digits than its factorization.

145051433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34843.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 145051433 is about 12043.7300285252. The cubic root of 145051433 is about 525.4208966384.

The spelling of 145051433 in words is "one hundred forty-five million, fifty-one thousand, four hundred thirty-three".

Divisors: 1 37 113 4181 34693 1283641 3920309 145051433