Search a number
-
+
121832660 = 2256091633
BaseRepresentation
bin1110100001100…
…00010011010100
322111020201222202
413100300103110
5222142121120
620031144032
73006363155
oct720602324
9274221882
10121832660
1162853754
1234975018
131c319141
141227592c
15aa68875
hex74304d4

121832660 has 12 divisors (see below), whose sum is σ = 255848628. Its totient is φ = 48733056.

The previous prime is 121832651. The next prime is 121832687. The reversal of 121832660 is 66238121.

It can be written as a sum of positive squares in 2 ways, for example, as 36048016 + 85784644 = 6004^2 + 9262^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3045797 + ... + 3045836.

It is an arithmetic number, because the mean of its divisors is an integer number (21320719).

Almost surely, 2121832660 is an apocalyptic number.

121832660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121832660 is an abundant number, since it is smaller than the sum of its proper divisors (134015968).

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

121832660 is a wasteful number, since it uses less digits than its factorization.

121832660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091642 (or 6091640 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 121832660 is about 11037.7832919477. The cubic root of 121832660 is about 495.7406997503.

The spelling of 121832660 in words is "one hundred twenty-one million, eight hundred thirty-two thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 6091633 12183266 24366532 30458165 60916330 121832660