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1010282121 = 321013110813
BaseRepresentation
bin111100001101111…
…010111010001001
32121102000122112100
4330031322322021
54032113011441
6244125504013
734015153632
oct7415727211
92542018470
101010282121
11479306a02
12242412009
131313ca294
1498266889
155da62cb6
hex3c37ae89

1010282121 has 12 divisors (see below), whose sum is σ = 1460750148. Its totient is φ = 672850464.

The previous prime is 1010282083. The next prime is 1010282149. The reversal of 1010282121 is 1212820101.

It can be written as a sum of positive squares in 2 ways, for example, as 95824521 + 914457600 = 9789^2 + 30240^2 .

It is not a de Polignac number, because 1010282121 - 26 = 1010282057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1010282094 and 1010282103.

It is not an unprimeable number, because it can be changed into a prime (1010282191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46290 + ... + 64523.

It is an arithmetic number, because the mean of its divisors is an integer number (121729179).

Almost surely, 21010282121 is an apocalyptic number.

It is an amenable number.

1010282121 is a deficient number, since it is larger than the sum of its proper divisors (450468027).

1010282121 is a wasteful number, since it uses less digits than its factorization.

1010282121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111832 (or 111829 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1010282121 is about 31784.9354411803. The cubic root of 1010282121 is about 1003.4156934215.

The spelling of 1010282121 in words is "one billion, ten million, two hundred eighty-two thousand, one hundred twenty-one".

Divisors: 1 3 9 1013 3039 9117 110813 332439 997317 112253569 336760707 1010282121