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245093890493953 = 31439129113950187
BaseRepresentation
bin110111101110100101011110…
…010001111000111000000001
31012010210202011122012110211001
4313232211132101320320001
5224111104241431301303
62225134325013252001
7102424310042230144
oct6756453621707001
91163722148173731
10245093890493953
117110480a665726
12235a4a08034001
13a69b34076cca7
14447487135005b
151d506c419d31d
hexdee95e478e01

245093890493953 has 16 divisors (see below), whose sum is σ = 253772891975680. Its totient is φ = 236464022811600.

The previous prime is 245093890493927. The next prime is 245093890494059. The reversal of 245093890493953 is 359394098390542.

It is a de Polignac number, because none of the positive numbers 2k-245093890493953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245093890496953) 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, 10594126 + ... + 24544312.

It is an arithmetic number, because the mean of its divisors is an integer number (15860805748480).

Almost surely, 2245093890493953 is an apocalyptic number.

It is an amenable number.

245093890493953 is a deficient number, since it is larger than the sum of its proper divisors (8679001481727).

245093890493953 is a wasteful number, since it uses less digits than its factorization.

245093890493953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13951948.

The product of its (nonzero) digits is 1133740800, while the sum is 73.

The spelling of 245093890493953 in words is "two hundred forty-five trillion, ninety-three billion, eight hundred ninety million, four hundred ninety-three thousand, nine hundred fifty-three".

Divisors: 1 31 439 1291 13609 40021 566749 13950187 17569219 432455797 6124132093 18009691417 189848094883 558300433927 7906254532063 245093890493953