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145045344 = 2531510889
BaseRepresentation
bin10001010010100…
…11011101100000
3101002221001210210
420221103131200
5244112422334
622220454120
73410602503
oct1051233540
9332831723
10145045344
1174968794
12406aa340
1324085962
141539913a
15cb015e9
hex8a53760

145045344 has 24 divisors (see below), whose sum is σ = 380744280. Its totient is φ = 48348416.

The previous prime is 145045339. The next prime is 145045451. The reversal of 145045344 is 443540541.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755349 + ... + 755540.

It is an arithmetic number, because the mean of its divisors is an integer number (15864345).

Almost surely, 2145045344 is an apocalyptic number.

It is an amenable number.

145045344 is an abundant number, since it is smaller than the sum of its proper divisors (235698936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145045344 is a wasteful number, since it uses less digits than its factorization.

145045344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510902 (or 1510894 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 145045344 is about 12043.4772387380. The cubic root of 145045344 is about 525.4135444587.

Adding to 145045344 its reverse (443540541), we get a palindrome (588585885).

The spelling of 145045344 in words is "one hundred forty-five million, forty-five thousand, three hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 1510889 3021778 4532667 6043556 9065334 12087112 18130668 24174224 36261336 48348448 72522672 145045344