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145081347 = 3223229947
BaseRepresentation
bin10001010010111…
…00010000000011
3101002222220012020
420221130100003
5244120100342
622221332523
73411112455
oct1051342003
9332886166
10145081347
1174992844
1240707143
1324099168
14153a82d5
15cb0c0ec
hex8a5c403

145081347 has 16 divisors (see below), whose sum is σ = 195363840. Its totient is φ = 95765472.

The previous prime is 145081327. The next prime is 145081351. The reversal of 145081347 is 743180541.

It is not a de Polignac number, because 145081347 - 218 = 144819203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145081327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152728 + ... + 153674.

It is an arithmetic number, because the mean of its divisors is an integer number (12210240).

Almost surely, 2145081347 is an apocalyptic number.

145081347 is a deficient number, since it is larger than the sum of its proper divisors (50282493).

145081347 is a wasteful number, since it uses less digits than its factorization.

145081347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 145081347 is about 12044.9718555088. The cubic root of 145081347 is about 525.4570133915.

The spelling of 145081347 in words is "one hundred forty-five million, eighty-one thousand, three hundred forty-seven".

Divisors: 1 3 223 229 669 687 947 2841 51067 153201 211181 216863 633543 650589 48360449 145081347