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245768105 = 5115098779
BaseRepresentation
bin11101010011000…
…01111110101001
3122010110022110102
432221201332221
51000404034410
640215355145
76042665042
oct1651417651
9563408412
10245768105
11116803240
126a382ab5
133bbc041b
14248d78c9
151689a2a5
hexea61fa9

245768105 has 16 divisors (see below), whose sum is σ = 322401600. Its totient is φ = 178368960.

The previous prime is 245768101. The next prime is 245768129. The reversal of 245768105 is 501867542.

It is not a de Polignac number, because 245768105 - 22 = 245768101 is a prime.

It is a super-2 number, since 2×2457681052 = 120803922870582050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245768101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23606 + ... + 32384.

It is an arithmetic number, because the mean of its divisors is an integer number (20150100).

Almost surely, 2245768105 is an apocalyptic number.

It is an amenable number.

245768105 is a deficient number, since it is larger than the sum of its proper divisors (76633495).

245768105 is a wasteful number, since it uses less digits than its factorization.

245768105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9304.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 245768105 is about 15676.9928557743. The cubic root of 245768105 is about 626.3857083625.

The spelling of 245768105 in words is "two hundred forty-five million, seven hundred sixty-eight thousand, one hundred five".

Divisors: 1 5 11 55 509 2545 5599 8779 27995 43895 96569 482845 4468511 22342555 49153621 245768105