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145111011 = 3439110183
BaseRepresentation
bin10001010011000…
…11011111100011
3101010001101212220
420221203133203
5244122023021
622222122123
73411265113
oct1051433743
9333041786
10145111011
1174a03061
1240720343
13240a9806
14153b5043
15cb15cc6
hex8a637e3

145111011 has 8 divisors (see below), whose sum is σ = 193923840. Its totient is φ = 96519432.

The previous prime is 145110989. The next prime is 145111027. The reversal of 145111011 is 110111541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145111011 - 29 = 145110499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145111411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53775 + ... + 56408.

It is an arithmetic number, because the mean of its divisors is an integer number (24240480).

Almost surely, 2145111011 is an apocalyptic number.

145111011 is a deficient number, since it is larger than the sum of its proper divisors (48812829).

145111011 is a wasteful number, since it uses less digits than its factorization.

145111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110625.

The product of its (nonzero) digits is 20, while the sum is 15.

The square root of 145111011 is about 12046.2031777652. The cubic root of 145111011 is about 525.4928234042.

Adding to 145111011 its reverse (110111541), we get a palindrome (255222552).

It can be divided in two parts, 145 and 111011, that added together give a triangular number (111156 = T471).

The spelling of 145111011 in words is "one hundred forty-five million, one hundred eleven thousand, eleven".

Divisors: 1 3 439 1317 110183 330549 48370337 145111011