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1145021301 = 321931613541
BaseRepresentation
bin100010000111111…
…1010001101110101
32221210120002221100
41010033322031311
54321111140201
6305341440313
740242343344
oct10417721565
92853502840
101145021301
115383754a6
1227b570099
131532b4bc8
14ac0dbb5b
156a7ca886
hex443fa375

1145021301 has 48 divisors (see below), whose sum is σ = 1827105280. Its totient is φ = 688176000.

The previous prime is 1145021291. The next prime is 1145021323. The reversal of 1145021301 is 1031205411.

1145021301 is a `hidden beast` number, since 1 + 1 + 450 + 213 + 0 + 1 = 666.

It is not a de Polignac number, because 1145021301 - 26 = 1145021237 is a prime.

It is a super-2 number, since 2×11450213012 = 2622147559487465202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145021701) 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 47 ways as a sum of consecutive naturals, for example, 321591 + ... + 325131.

Almost surely, 21145021301 is an apocalyptic number.

It is an amenable number.

1145021301 is a deficient number, since it is larger than the sum of its proper divisors (682083979).

1145021301 is a wasteful number, since it uses less digits than its factorization.

1145021301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658 (or 3655 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1145021301 is about 33838.1633810111. The cubic root of 1145021301 is about 1046.1754440434.

Adding to 1145021301 its reverse (1031205411), we get a palindrome (2176226712).

The spelling of 1145021301 in words is "one billion, one hundred forty-five million, twenty-one thousand, three hundred one".

Divisors: 1 3 9 19 31 57 61 93 171 183 279 549 589 1159 1767 1891 3477 3541 5301 5673 10431 10623 17019 31869 35929 67279 107787 109771 201837 216001 323361 329313 605511 648003 987939 1944009 2085649 4104019 6256947 6696031 12312057 18770841 20088093 36936171 60264279 127224589 381673767 1145021301