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2013103125 = 355511241
BaseRepresentation
bin111011111111101…
…1000010000010101
312012022000020100000
41313333120100111
513110323300000
6531431441513
7100613044215
oct16777302025
95168006300
102013103125
119433871a0
12482226299
132610b44a7
1415150a245
15bbb00000
hex77fd8415

2013103125 has 144 divisors (see below), whose sum is σ = 4128860736. Its totient is φ = 972000000.

The previous prime is 2013103117. The next prime is 2013103133. The reversal of 2013103125 is 5213013102.

It is an interprime number because it is at equal distance from previous prime (2013103117) and next prime (2013103133).

It is not a de Polignac number, because 2013103125 - 23 = 2013103117 is a prime.

It is a nialpdrome in base 15.

It is a zygodrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 2013103098 and 2013103107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 8353005 + ... + 8353245.

It is an arithmetic number, because the mean of its divisors is an integer number (28672644).

Almost surely, 22013103125 is an apocalyptic number.

2013103125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2013103125 is an abundant number, since it is smaller than the sum of its proper divisors (2115757611).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2013103125 is an frugal number, since it uses more digits than its factorization.

2013103125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2013103125 is about 44867.6177771898. The cubic root of 2013103125 is about 1262.6665466656. Note that the first 3 decimals are identical.

Adding to 2013103125 its reverse (5213013102), we get a palindrome (7226116227).

The spelling of 2013103125 in words is "two billion, thirteen million, one hundred three thousand, one hundred twenty-five".

Divisors: 1 3 5 9 11 15 25 27 33 45 55 75 81 99 125 135 165 225 241 243 275 297 375 405 495 625 675 723 825 891 1125 1205 1215 1375 1485 1875 2025 2169 2475 2651 2673 3125 3375 3615 4125 4455 5625 6025 6075 6507 6875 7425 7953 9375 10125 10845 12375 13255 13365 16875 18075 19521 20625 22275 23859 28125 30125 30375 32535 34375 37125 39765 50625 54225 58563 61875 66275 66825 71577 84375 90375 97605 103125 111375 119295 150625 151875 162675 185625 198825 214731 253125 271125 292815 309375 331375 334125 357885 451875 488025 556875 596475 644193 753125 759375 813375 928125 994125 1073655 1355625 1464075 1656875 1670625 1789425 2259375 2440125 2784375 2982375 3220965 4066875 4970625 5368275 6778125 7320375 8284375 8353125 8947125 12200625 14911875 16104825 20334375 24853125 26841375 36601875 44735625 61003125 74559375 80524125 134206875 183009375 223678125 402620625 671034375 2013103125