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23173313205225 = 3521815213276503
BaseRepresentation
bin1010100010011011101010…
…00110100001001111101001
310001001100101001002211100210
411101031311012201033221
511014132421140031400
6121141401221051333
74611134206145421
oct521156506411751
9101040331084323
1023173313205225
1174248241a5017
122723187856b49
13cc13072c4781
145a1846c43481
152a2bcec35950
hex1513751a13e9

23173313205225 has 48 divisors (see below), whose sum is σ = 38598842265984. Its totient is φ = 12267223488000.

The previous prime is 23173313205209. The next prime is 23173313205239. The reversal of 23173313205225 is 52250231337132.

It is not a de Polignac number, because 23173313205225 - 24 = 23173313205209 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5434324 + ... + 8710826.

It is an arithmetic number, because the mean of its divisors is an integer number (804142547208).

Almost surely, 223173313205225 is an apocalyptic number.

23173313205225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23173313205225 is a deficient number, since it is larger than the sum of its proper divisors (15425529060759).

23173313205225 is a wasteful number, since it uses less digits than its factorization.

23173313205225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277218 (or 3277213 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 23173313205225 in words is "twenty-three trillion, one hundred seventy-three billion, three hundred thirteen million, two hundred five thousand, two hundred twenty-five".

Divisors: 1 3 5 15 25 75 181 521 543 905 1563 2605 2715 4525 7815 13025 13575 39075 94301 282903 471505 1414515 2357525 3276503 7072575 9829509 16382515 49147545 81912575 245737725 593047043 1707058063 1779141129 2965235215 5121174189 8535290315 8895705645 14826176075 25605870945 42676451575 44478528225 128029354725 308977509403 926932528209 1544887547015 4634662641045 7724437735075 23173313205225