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145054349 = 1171792351
BaseRepresentation
bin10001010010101…
…01101010001101
3101002221112011022
420221111222031
5244113214344
622221003525
73410640656
oct1051255215
9332845138
10145054349
1174974530
12406b35a5
1324089a9b
141539c52d
15cb040ee
hex8a55a8d

145054349 has 16 divisors (see below), whose sum is σ = 162570240. Its totient is φ = 128310000.

The previous prime is 145054337. The next prime is 145054373. The reversal of 145054349 is 943450541.

It is a cyclic number.

It is not a de Polignac number, because 145054349 - 24 = 145054333 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145054249) 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 15 ways as a sum of consecutive naturals, for example, 60524 + ... + 62874.

It is an arithmetic number, because the mean of its divisors is an integer number (10160640).

Almost surely, 2145054349 is an apocalyptic number.

It is an amenable number.

145054349 is a deficient number, since it is larger than the sum of its proper divisors (17515891).

145054349 is a wasteful number, since it uses less digits than its factorization.

145054349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 145054349 is about 12043.8510867579. The cubic root of 145054349 is about 525.4244174978.

The spelling of 145054349 in words is "one hundred forty-five million, fifty-four thousand, three hundred forty-nine".

Divisors: 1 11 71 79 781 869 2351 5609 25861 61699 166921 185729 1836131 2043019 13186759 145054349