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145914111 = 32721719463
BaseRepresentation
bin10001011001001…
…11100011111111
3101011120012112100
420230213203333
5244323222421
622251240143
73421151400
oct1054474377
9334505470
10145914111
1175401482
1240a49053
13242cb215
14155439a7
15cc23c26
hex8b278ff

145914111 has 36 divisors (see below), whose sum is σ = 259610832. Its totient is φ = 78470784.

The previous prime is 145914107. The next prime is 145914113. The reversal of 145914111 is 111419541.

It is not a de Polignac number, because 145914111 - 22 = 145914107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145914113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2235 + ... + 17228.

It is an arithmetic number, because the mean of its divisors is an integer number (7211412).

Almost surely, 2145914111 is an apocalyptic number.

145914111 is a deficient number, since it is larger than the sum of its proper divisors (113696721).

145914111 is a wasteful number, since it uses less digits than its factorization.

145914111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19500 (or 19490 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 145914111 is about 12079.4913386285. The cubic root of 145914111 is about 526.4604667789.

The spelling of 145914111 in words is "one hundred forty-five million, nine hundred fourteen thousand, one hundred eleven".

Divisors: 1 3 7 9 17 21 49 51 63 119 147 153 357 441 833 1071 2499 7497 19463 58389 136241 175167 330871 408723 953687 992613 1226169 2316097 2861061 2977839 6948291 8583183 16212679 20844873 48638037 145914111