Search a number
-
+
121012095 = 3544318211
BaseRepresentation
bin1110011011001…
…11111101111111
322102201001101110
413031213331333
5221434341340
620001413103
72666404641
oct715477577
9272631343
10121012095
11623431a6
123463a193
131c0bc7b9
1412100891
15a955680
hex7367f7f

121012095 has 16 divisors (see below), whose sum is σ = 194067072. Its totient is φ = 64390560.

The previous prime is 121012081. The next prime is 121012109. The reversal of 121012095 is 590210121.

It is an interprime number because it is at equal distance from previous prime (121012081) and next prime (121012109).

It is not a de Polignac number, because 121012095 - 25 = 121012063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2461 + ... + 15750.

It is an arithmetic number, because the mean of its divisors is an integer number (12129192).

Almost surely, 2121012095 is an apocalyptic number.

121012095 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121012095 is a deficient number, since it is larger than the sum of its proper divisors (73054977).

121012095 is a wasteful number, since it uses less digits than its factorization.

121012095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18662.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 121012095 is about 11000.5497589893. The cubic root of 121012095 is about 494.6252239211.

It can be divided in two parts, 12101 and 2095, that added together give a triangular number (14196 = T168).

The spelling of 121012095 in words is "one hundred twenty-one million, twelve thousand, ninety-five".

Divisors: 1 3 5 15 443 1329 2215 6645 18211 54633 91055 273165 8067473 24202419 40337365 121012095