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105128192 = 2813311019
BaseRepresentation
bin1100100010000…
…10000100000000
321022211001202202
412101002010000
5203403100232
614233132332
72414401121
oct621020400
9238731682
10105128192
1154384404
122b25a0a8
1318a1aa40
14dd68048
159369162
hex6442100

105128192 has 72 divisors (see below), whose sum is σ = 233506560. Its totient is φ = 46909440.

The previous prime is 105128189. The next prime is 105128207. The reversal of 105128192 is 291821501.

It is a super-2 number, since 2×1051281922 = 22103873506377728, which contains 22 as substring.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102659 + ... + 103677.

Almost surely, 2105128192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105128192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116753280).

105128192 is an abundant number, since it is smaller than the sum of its proper divisors (128378368).

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

105128192 is a wasteful number, since it uses less digits than its factorization.

105128192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079 (or 1065 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 105128192 is about 10253.2039870472. The cubic root of 105128192 is about 471.9613106275.

Adding to 105128192 its reverse (291821501), we get a palindrome (396949693).

The spelling of 105128192 in words is "one hundred five million, one hundred twenty-eight thousand, one hundred ninety-two".

Divisors: 1 2 4 8 13 16 26 31 32 52 62 64 104 124 128 208 248 256 403 416 496 806 832 992 1019 1612 1664 1984 2038 3224 3328 3968 4076 6448 7936 8152 12896 13247 16304 25792 26494 31589 32608 51584 52988 63178 65216 103168 105976 126356 130432 211952 252712 260864 410657 423904 505424 821314 847808 1010848 1642628 1695616 2021696 3285256 3391232 4043392 6570512 8086784 13141024 26282048 52564096 105128192