Search a number
-
+
2110122091 = 71149155813
BaseRepresentation
bin111110111000101…
…1110100001101011
312110001120022100001
41331301132201223
513310142401331
6545215123431
7103201512310
oct17561364153
95401508301
102110122091
11993121a60
124aa813577
1327822316c
14160362d07
15c53b6561
hex7dc5e86b

2110122091 has 16 divisors (see below), whose sum is σ = 2636206848. Its totient is φ = 1640872800.

The previous prime is 2110122089. The next prime is 2110122109. The reversal of 2110122091 is 1902210112.

It is a happy number.

It is not a de Polignac number, because 2110122091 - 21 = 2110122089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2110122491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9901 + ... + 65713.

It is an arithmetic number, because the mean of its divisors is an integer number (164762928).

Almost surely, 22110122091 is an apocalyptic number.

2110122091 is a deficient number, since it is larger than the sum of its proper divisors (526084757).

2110122091 is a wasteful number, since it uses less digits than its factorization.

2110122091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56322.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 2110122091 is about 45936.0652537851. The cubic root of 2110122091 is about 1282.6333504488.

The spelling of 2110122091 in words is "two billion, one hundred ten million, one hundred twenty-two thousand, ninety-one".

Divisors: 1 7 11 77 491 3437 5401 37807 55813 390691 613943 4297601 27404183 191829281 301446013 2110122091