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145034101 = 145399817
BaseRepresentation
bin10001010010100…
…00101101110101
3101002220111101101
420221100231311
5244112042401
622220330101
73410524642
oct1051205565
9332814341
10145034101
11749602a3
12406a3931
13240807c4
1415394dc9
15caed101
hex8a50b75

145034101 has 4 divisors (see below), whose sum is σ = 145135372. Its totient is φ = 144932832.

The previous prime is 145034077. The next prime is 145034107. The reversal of 145034101 is 101430541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101430541 = 891139669.

It can be written as a sum of positive squares in 2 ways, for example, as 124322500 + 20711601 = 11150^2 + 4551^2 .

It is a cyclic number.

It is not a de Polignac number, because 145034101 - 25 = 145034069 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 (145034107) 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 3 ways as a sum of consecutive naturals, for example, 48456 + ... + 51361.

It is an arithmetic number, because the mean of its divisors is an integer number (36283843).

Almost surely, 2145034101 is an apocalyptic number.

It is an amenable number.

145034101 is a deficient number, since it is larger than the sum of its proper divisors (101271).

145034101 is an equidigital number, since it uses as much as digits as its factorization.

145034101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101270.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 145034101 is about 12043.0104625048. The cubic root of 145034101 is about 525.3999685269.

Adding to 145034101 its reverse (101430541), we get a palindrome (246464642).

The spelling of 145034101 in words is "one hundred forty-five million, thirty-four thousand, one hundred one".

Divisors: 1 1453 99817 145034101