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105310000000 = 275710531
BaseRepresentation
bin110001000010011110…
…1110001001110000000
3101001211020100021212101
41202010331301032000
53211133330000000
6120213450440144
710415452142032
oct1420475611600
9331736307771
10105310000000
1140730827757
12184b0133054
139c1395a98a
145150379c52
152b154c7e6a
hex1884f71380

105310000000 has 128 divisors (see below), whose sum is σ = 262270812960. Its totient is φ = 42120000000.

The previous prime is 105309999997. The next prime is 105310000021. The reversal of 105310000000 is 13501.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1053100000002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9994735 + ... + 10005265.

Almost surely, 2105310000000 is an apocalyptic number.

105310000000 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 105310000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131135406480).

105310000000 is an abundant number, since it is smaller than the sum of its proper divisors (156960812960).

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

105310000000 is an frugal number, since it uses more digits than its factorization.

105310000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10580 (or 10538 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 10.

Adding to 105310000000 its reverse (13501), we get a palindrome (105310013501).

The spelling of 105310000000 in words is "one hundred five billion, three hundred ten million", and thus it is an aban number.

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 125 128 160 200 250 320 400 500 625 640 800 1000 1250 1600 2000 2500 3125 3200 4000 5000 6250 8000 10000 10531 12500 15625 16000 20000 21062 25000 31250 40000 42124 50000 52655 62500 78125 80000 84248 100000 105310 125000 156250 168496 200000 210620 250000 263275 312500 336992 400000 421240 500000 526550 625000 673984 842480 1000000 1053100 1250000 1316375 1347968 1684960 2000000 2106200 2500000 2632750 3369920 4212400 5000000 5265500 6581875 6739840 8424800 10000000 10531000 13163750 16849600 21062000 26327500 32909375 33699200 42124000 52655000 65818750 84248000 105310000 131637500 164546875 168496000 210620000 263275000 329093750 421240000 526550000 658187500 822734375 842480000 1053100000 1316375000 1645468750 2106200000 2632750000 3290937500 4212400000 5265500000 6581875000 10531000000 13163750000 21062000000 26327500000 52655000000 105310000000