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660103125 = 3551137173
BaseRepresentation
bin100111010110000…
…101111111010101
31201000002201020220
4213112011333111
52322441300000
6145300144553
722233532623
oct4726057725
91630081226
10660103125
1130967a280
12165098159
13a69b0786
1463950513
153ce411a0
hex27585fd5

660103125 has 96 divisors (see below), whose sum is σ = 1239670656. Its totient is φ = 309600000.

The previous prime is 660103123. The next prime is 660103153. The reversal of 660103125 is 521301066.

It is not a de Polignac number, because 660103125 - 21 = 660103123 is a prime.

It is a super-2 number, since 2×6601031252 = 871472271269531250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 660103095 and 660103104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660103123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3815539 + ... + 3815711.

It is an arithmetic number, because the mean of its divisors is an integer number (12913236).

Almost surely, 2660103125 is an apocalyptic number.

It is an amenable number.

660103125 is a deficient number, since it is larger than the sum of its proper divisors (579567531).

660103125 is a wasteful number, since it uses less digits than its factorization.

660103125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 660103125 is about 25692.4721465257. The cubic root of 660103125 is about 870.7041135666.

It can be divided in two parts, 660 and 103125, that multiplied together give a square (68062500 = 82502).

The spelling of 660103125 in words is "six hundred sixty million, one hundred three thousand, one hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 37 55 75 111 125 165 173 185 275 375 407 519 555 625 825 865 925 1221 1375 1875 1903 2035 2595 2775 3125 4125 4325 4625 5709 6105 6401 6875 9375 9515 10175 12975 13875 19203 20625 21625 23125 28545 30525 32005 34375 47575 50875 64875 69375 70411 96015 103125 108125 115625 142725 152625 160025 211233 237875 254375 324375 346875 352055 480075 540625 713625 763125 800125 1056165 1189375 1271875 1621875 1760275 2400375 3568125 3815625 4000625 5280825 5946875 8801375 12001875 17840625 20003125 26404125 44006875 60009375 132020625 220034375 660103125