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145343345 = 5731971381
BaseRepresentation
bin10001010100111…
…00001101110001
3101010111012120212
420222130031301
5244201441340
622231113505
73413253350
oct1052341561
9333435525
10145343345
1175051674
1240812895
132415b4a4
1415435997
15cb5ea65
hex8a9c371

145343345 has 32 divisors (see below), whose sum is σ = 208029696. Its totient is φ = 95385600.

The previous prime is 145343339. The next prime is 145343347. The reversal of 145343345 is 543343541.

It is not a de Polignac number, because 145343345 - 24 = 145343329 is a prime.

It is a super-2 number, since 2×1453433452 = 42249375871578050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145343347) 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 31 ways as a sum of consecutive naturals, for example, 104555 + ... + 105935.

It is an arithmetic number, because the mean of its divisors is an integer number (6500928).

Almost surely, 2145343345 is an apocalyptic number.

It is an amenable number.

145343345 is a deficient number, since it is larger than the sum of its proper divisors (62686351).

145343345 is a wasteful number, since it uses less digits than its factorization.

145343345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521.

The product of its digits is 43200, while the sum is 32.

The square root of 145343345 is about 12055.8427743563. The cubic root of 145343345 is about 525.7731254714.

Adding to 145343345 its reverse (543343541), we get a palindrome (688686886).

The spelling of 145343345 in words is "one hundred forty-five million, three hundred forty-three thousand, three hundred forty-five".

Divisors: 1 5 7 31 35 97 155 217 485 679 1085 1381 3007 3395 6905 9667 15035 21049 42811 48335 105245 133957 214055 299677 669785 937699 1498385 4152667 4688495 20763335 29068669 145343345