Search a number
-
+
121008293 = 722469557
BaseRepresentation
bin1110011011001…
…11000010100101
322102200212011122
413031213002211
5221434231133
620001343325
72666360600
oct715470245
9272625148
10121008293
116234035a
1234637b45
131c0bab53
14120dd337
15a954498
hex73670a5

121008293 has 6 divisors (see below), whose sum is σ = 140764806. Its totient is φ = 103721352.

The previous prime is 121008263. The next prime is 121008311. The reversal of 121008293 is 392800121.

It can be written as a sum of positive squares in only one way, i.e., 68923204 + 52085089 = 8302^2 + 7217^2 .

It is not a de Polignac number, because 121008293 - 212 = 121004197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121008263) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1234730 + ... + 1234827.

It is an arithmetic number, because the mean of its divisors is an integer number (23460801).

Almost surely, 2121008293 is an apocalyptic number.

It is an amenable number.

121008293 is a deficient number, since it is larger than the sum of its proper divisors (19756513).

121008293 is an equidigital number, since it uses as much as digits as its factorization.

121008293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469571 (or 2469564 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 121008293 is about 11000.3769480868. The cubic root of 121008293 is about 494.6200437646.

The spelling of 121008293 in words is "one hundred twenty-one million, eight thousand, two hundred ninety-three".

Divisors: 1 7 49 2469557 17286899 121008293