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105206816 = 25111383277
BaseRepresentation
bin1100100010101…
…01010000100000
321022222001121202
412101111100200
5203413104231
614234540332
72415146261
oct621252040
9238861552
10105206816
1154428490
122b2976a8
1318a47770
14dd88968
1593825cb
hex6455420

105206816 has 96 divisors (see below), whose sum is σ = 247157568. Its totient is φ = 43453440.

The previous prime is 105206753. The next prime is 105206837. The reversal of 105206816 is 618602501.

It is a happy number.

It is a super-2 number, since 2×1052068162 = 22136948265715712, which contains 22 as substring.

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, 379670 + ... + 379946.

It is an arithmetic number, because the mean of its divisors is an integer number (2574558).

Almost surely, 2105206816 is an apocalyptic number.

105206816 is a gapful number since it is divisible by the number (16) 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 105206816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123578784).

105206816 is an abundant number, since it is smaller than the sum of its proper divisors (141950752).

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

105206816 is a wasteful number, since it uses less digits than its factorization.

105206816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 105206816 is about 10257.0373890320. The cubic root of 105206816 is about 472.0789392055.

The spelling of 105206816 in words is "one hundred five million, two hundred six thousand, eight hundred sixteen".

Divisors: 1 2 4 8 11 13 16 22 26 32 44 52 83 88 104 143 166 176 208 277 286 332 352 416 554 572 664 913 1079 1108 1144 1328 1826 2158 2216 2288 2656 3047 3601 3652 4316 4432 4576 6094 7202 7304 8632 8864 11869 12188 14404 14608 17264 22991 23738 24376 28808 29216 34528 39611 45982 47476 48752 57616 79222 91964 94952 97504 115232 158444 183928 189904 252901 298883 316888 367856 379808 505802 597766 633776 735712 1011604 1195532 1267552 2023208 2391064 3287713 4046416 4782128 6575426 8092832 9564256 13150852 26301704 52603408 105206816