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145504411 = 1317658391
BaseRepresentation
bin10001010110000…
…11100010011011
3101010210101112021
420223003202123
5244222120121
622234355311
73414524053
oct1053034233
9333711467
10145504411
1175151688
124088bb37
13241b68b0
1415478563
15cb92641
hex8ac389b

145504411 has 8 divisors (see below), whose sum is σ = 165914784. Its totient is φ = 126410880.

The previous prime is 145504379. The next prime is 145504439. The reversal of 145504411 is 114405541.

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

It is a cyclic number.

It is not a de Polignac number, because 145504411 - 25 = 145504379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145504481) 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 7 ways as a sum of consecutive naturals, for example, 328975 + ... + 329416.

It is an arithmetic number, because the mean of its divisors is an integer number (20739348).

Almost surely, 2145504411 is an apocalyptic number.

145504411 is a deficient number, since it is larger than the sum of its proper divisors (20410373).

145504411 is a wasteful number, since it uses less digits than its factorization.

145504411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658421.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 145504411 is about 12062.5209222616. The cubic root of 145504411 is about 525.9672701519.

Adding to 145504411 its reverse (114405541), we get a palindrome (259909952).

The spelling of 145504411 in words is "one hundred forty-five million, five hundred four thousand, four hundred eleven".

Divisors: 1 13 17 221 658391 8559083 11192647 145504411