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105052520 = 235171947173
BaseRepresentation
bin1100100001011…
…11100101101000
321022200012222002
412100233211220
5203343140040
614231350132
72413634366
oct620574550
9238605862
10105052520
1154332571
122b222348
13189c2471
14dd48636
159351a15
hex642f968

105052520 has 128 divisors (see below), whose sum is σ = 270604800. Its totient is φ = 36458496.

The previous prime is 105052517. The next prime is 105052547. The reversal of 105052520 is 25250501.

It is a super-2 number, since 2×1050525202 = 22072063916700800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 105052492 and 105052501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607154 + ... + 607326.

It is an arithmetic number, because the mean of its divisors is an integer number (2114100).

Almost surely, 2105052520 is an apocalyptic number.

105052520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105052520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135302400).

105052520 is an abundant number, since it is smaller than the sum of its proper divisors (165552280).

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

105052520 is a wasteful number, since it uses less digits than its factorization.

105052520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 105052520 is about 10249.5131591700. The cubic root of 105052520 is about 471.8480431072.

The spelling of 105052520 in words is "one hundred five million, fifty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 17 19 20 34 38 40 47 68 76 85 94 95 136 152 170 173 188 190 235 323 340 346 376 380 470 646 680 692 760 799 865 893 940 1292 1384 1598 1615 1730 1786 1880 2584 2941 3196 3230 3287 3460 3572 3995 4465 5882 6392 6460 6574 6920 7144 7990 8131 8930 11764 12920 13148 14705 15181 15980 16262 16435 17860 23528 26296 29410 30362 31960 32524 32870 35720 40655 55879 58820 60724 65048 65740 75905 81310 111758 117640 121448 131480 138227 151810 154489 162620 223516 276454 279395 303620 308978 325240 447032 552908 558790 607240 617956 691135 772445 1105816 1117580 1235912 1382270 1544890 2235160 2626313 2764540 3089780 5252626 5529080 6179560 10505252 13131565 21010504 26263130 52526260 105052520