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145336045 = 5109726497
BaseRepresentation
bin10001010100110…
…10011011101101
3101010110211120111
420222122123231
5244201223140
622231020021
73413223151
oct1052323355
9333424514
10145336045
1175047138
124080a611
132415807a
1415433061
15cb5c7ea
hex8a9a6ed

145336045 has 8 divisors (see below), whose sum is σ = 174568824. Its totient is φ = 116158464.

The previous prime is 145336033. The next prime is 145336049. The reversal of 145336045 is 540633541.

It can be written as a sum of positive squares in 4 ways, for example, as 28068804 + 117267241 = 5298^2 + 10829^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145336045 is a prime.

It is a super-2 number, since 2×1453360452 = 42245131952484050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145335998 and 145336016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145336049) 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, 7764 + ... + 18733.

It is an arithmetic number, because the mean of its divisors is an integer number (21821103).

Almost surely, 2145336045 is an apocalyptic number.

It is an amenable number.

145336045 is a deficient number, since it is larger than the sum of its proper divisors (29232779).

145336045 is a wasteful number, since it uses less digits than its factorization.

145336045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27599.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 145336045 is about 12055.5400127908. The cubic root of 145336045 is about 525.7643228483.

Adding to 145336045 its reverse (540633541), we get a palindrome (685969586).

The spelling of 145336045 in words is "one hundred forty-five million, three hundred thirty-six thousand, forty-five".

Divisors: 1 5 1097 5485 26497 132485 29067209 145336045