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2215163106 = 233132242731
BaseRepresentation
bin1000010000001000…
…1011010011100010
312201101012221112000
42010002023103202
514014040204411
61003450344430
7105615401322
oct20402132342
95641187460
102215163106
11a37446912
12519a2b116
13293c10300
141702a7282
15ce714956
hex8408b4e2

2215163106 has 48 divisors (see below), whose sum is σ = 5330394720. Its totient is φ = 681585840.

The previous prime is 2215163021. The next prime is 2215163107. The reversal of 2215163106 is 6013615122.

2215163106 is a `hidden beast` number, since 2 + 21 + 5 + 1 + 631 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2215163106.

It is not an unprimeable number, because it can be changed into a prime (2215163107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112240 + ... + 130491.

It is an arithmetic number, because the mean of its divisors is an integer number (111049890).

Almost surely, 22215163106 is an apocalyptic number.

2215163106 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2215163106 is an abundant number, since it is smaller than the sum of its proper divisors (3115231614).

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

2215163106 is a wasteful number, since it uses less digits than its factorization.

2215163106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242768 (or 242749 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2215163106 is about 47065.5192896031. The cubic root of 2215163106 is about 1303.5726394015.

Adding to 2215163106 its reverse (6013615122), we get a palindrome (8228778228).

The spelling of 2215163106 in words is "two billion, two hundred fifteen million, one hundred sixty-three thousand, one hundred six".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 78 117 169 234 338 351 507 702 1014 1521 3042 4563 9126 242731 485462 728193 1456386 2184579 3155503 4369158 6311006 6553737 9466509 13107474 18933018 28399527 41021539 56799054 82043078 85198581 123064617 170397162 246129234 369193851 738387702 1107581553 2215163106