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145381411 = 789233357
BaseRepresentation
bin10001010101001…
…01100000100011
3101010120010210201
420222211200203
5244204201121
622232010031
73413502340
oct1052454043
9333503721
10145381411
117507822a
1240830917
1324172906
14154457c7
15cb6ae91
hex8aa5823

145381411 has 8 divisors (see below), whose sum is σ = 168017760. Its totient is φ = 123211968.

The previous prime is 145381381. The next prime is 145381417. The reversal of 145381411 is 114183541.

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 145381411 - 213 = 145373219 is a prime.

It is a super-2 number, since 2×1453814112 = 42271509328701842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145381411.

It is not an unprimeable number, because it can be changed into a prime (145381417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116056 + ... + 117301.

It is an arithmetic number, because the mean of its divisors is an integer number (21002220).

Almost surely, 2145381411 is an apocalyptic number.

145381411 is a deficient number, since it is larger than the sum of its proper divisors (22636349).

145381411 is an equidigital number, since it uses as much as digits as its factorization.

145381411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233453.

The product of its digits is 1920, while the sum is 28.

The square root of 145381411 is about 12057.4214075813. The cubic root of 145381411 is about 525.8190221555.

The spelling of 145381411 in words is "one hundred forty-five million, three hundred eighty-one thousand, four hundred eleven".

Divisors: 1 7 89 623 233357 1633499 20768773 145381411