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245080789 = 1726953593
BaseRepresentation
bin11101001101110…
…10001011010101
3122002011101122021
432212322023111
51000220041124
640152533141
76034103152
oct1646721325
9562141567
10245080789
11116383908
126a0b11b1
133ba0c625
1424799229
15167b17e4
hexe9ba2d5

245080789 has 8 divisors (see below), whose sum is σ = 260466840. Its totient is φ = 229802496.

The previous prime is 245080763. The next prime is 245080793. The reversal of 245080789 is 987080542.

It can be written as a sum of positive squares in 4 ways, for example, as 15800625 + 229280164 = 3975^2 + 15142^2 .

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 245080789 - 211 = 245078741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245080799) 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, 22224 + ... + 31369.

It is an arithmetic number, because the mean of its divisors is an integer number (32558355).

Almost surely, 2245080789 is an apocalyptic number.

It is an amenable number.

245080789 is a deficient number, since it is larger than the sum of its proper divisors (15386051).

245080789 is a wasteful number, since it uses less digits than its factorization.

245080789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53879.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 245080789 is about 15655.0563397262. The cubic root of 245080789 is about 625.8012456497.

The spelling of 245080789 in words is "two hundred forty-five million, eighty thousand, seven hundred eighty-nine".

Divisors: 1 17 269 4573 53593 911081 14416517 245080789