Search a number
-
+
121910082 = 23712772273
BaseRepresentation
bin1110100010000…
…11001101000010
322111101200012020
413101003031002
5222202110312
620032542310
73010134660
oct721031502
9274350166
10121910082
11628a6938
12349b1996
131c345458
1412295c30
15aa8178c
hex7443342

121910082 has 32 divisors (see below), whose sum is σ = 278992512. Its totient is φ = 34788864.

The previous prime is 121910059. The next prime is 121910083. The reversal of 121910082 is 280019121.

It is not an unprimeable number, because it can be changed into a prime (121910083) 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 15 ways as a sum of consecutive naturals, for example, 52498 + ... + 54770.

It is an arithmetic number, because the mean of its divisors is an integer number (8718516).

Almost surely, 2121910082 is an apocalyptic number.

121910082 is an abundant number, since it is smaller than the sum of its proper divisors (157082430).

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

121910082 is a wasteful number, since it uses less digits than its factorization.

121910082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3562.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 121910082 is about 11041.2898703005. The cubic root of 121910082 is about 495.8456883174.

The spelling of 121910082 in words is "one hundred twenty-one million, nine hundred ten thousand, eighty-two".

Divisors: 1 2 3 6 7 14 21 42 1277 2273 2554 3831 4546 6819 7662 8939 13638 15911 17878 26817 31822 47733 53634 95466 2902621 5805242 8707863 17415726 20318347 40636694 60955041 121910082