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108531172 = 2227132793
BaseRepresentation
bin1100111100000…
…00110111100100
321120012221210001
412132000313210
5210240444142
614434111044
72455333261
oct636006744
9246187701
10108531172
1156299092
123041b484
131963c939
14105b2268
1597dc5b7
hex6780de4

108531172 has 6 divisors (see below), whose sum is σ = 189929558. Its totient is φ = 54265584.

The previous prime is 108531169. The next prime is 108531193. The reversal of 108531172 is 271135801.

It can be written as a sum of positive squares in only one way, i.e., 65707236 + 42823936 = 8106^2 + 6544^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 108531172.

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 as a sum of consecutive naturals, namely, 13566393 + ... + 13566400.

Almost surely, 2108531172 is an apocalyptic number.

It is an amenable number.

108531172 is a deficient number, since it is larger than the sum of its proper divisors (81398386).

108531172 is a wasteful number, since it uses less digits than its factorization.

108531172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27132797 (or 27132795 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 108531172 is about 10417.8295244259. The cubic root of 108531172 is about 476.9997641325. Note that the first 3 decimals are identical.

Adding to 108531172 its reverse (271135801), we get a palindrome (379666973).

The spelling of 108531172 in words is "one hundred eight million, five hundred thirty-one thousand, one hundred seventy-two".

Divisors: 1 2 4 27132793 54265586 108531172