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145689722353 = 731671381209
BaseRepresentation
bin1000011110101111001…
…0001011110111110001
3111221001100220201111201
42013223302023313301
54341333032103403
6150532352211201
713345220131060
oct2075362136761
9457040821451
10145689722353
115687206081a
122429b239b01
131097a5a1c06
1470a11501d7
153bca4ba21d
hex21ebc8bdf1

145689722353 has 8 divisors (see below), whose sum is σ = 171873589760. Its totient is φ = 120848617440.

The previous prime is 145689722351. The next prime is 145689722357. The reversal of 145689722353 is 353227986541.

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 145689722353 - 21 = 145689722351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145689722294 and 145689722303.

It is not an unprimeable number, because it can be changed into a prime (145689722351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335690388 + ... + 335690821.

It is an arithmetic number, because the mean of its divisors is an integer number (21484198720).

Almost surely, 2145689722353 is an apocalyptic number.

It is an amenable number.

145689722353 is a deficient number, since it is larger than the sum of its proper divisors (26183867407).

145689722353 is an equidigital number, since it uses as much as digits as its factorization.

145689722353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671381247.

The product of its digits is 10886400, while the sum is 55.

The spelling of 145689722353 in words is "one hundred forty-five billion, six hundred eighty-nine million, seven hundred twenty-two thousand, three hundred fifty-three".

Divisors: 1 7 31 217 671381209 4699668463 20812817479 145689722353