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145654908145 = 529130981629
BaseRepresentation
bin1000011110100110110…
…1011000010011110001
3111220221221101222101121
42013221231120103301
54341300124030040
6150525110102241
713344315201655
oct2075155302361
9456857358347
10145654908145
115685444234a
122428b64a981
13109733028a6
14709a68aa65
153bc73dec4a
hex21e9b584f1

145654908145 has 4 divisors (see below), whose sum is σ = 174785889780. Its totient is φ = 116523926512.

The previous prime is 145654908137. The next prime is 145654908169. The reversal of 145654908145 is 541809456541.

145654908145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93891377889 + 51763530256 = 306417^2 + 227516^2 .

It is a cyclic number.

It is not a de Polignac number, because 145654908145 - 23 = 145654908137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145654908092 and 145654908101.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14565490810 + ... + 14565490819.

It is an arithmetic number, because the mean of its divisors is an integer number (43696472445).

Almost surely, 2145654908145 is an apocalyptic number.

It is an amenable number.

145654908145 is a deficient number, since it is larger than the sum of its proper divisors (29130981635).

145654908145 is an equidigital number, since it uses as much as digits as its factorization.

145654908145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29130981634.

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 145654908145 in words is "one hundred forty-five billion, six hundred fifty-four million, nine hundred eight thousand, one hundred forty-five".

Divisors: 1 5 29130981629 145654908145