Search a number
-
+
101274281 is a prime number
BaseRepresentation
bin1100000100101…
…01001010101001
321001120021012022
412002111022221
5201411234111
614014354225
72336550203
oct602251251
9231507168
10101274281
1152191959
1229abb975
1317c9b814
14d643773
158d572db
hex60952a9

101274281 has 2 divisors, whose sum is σ = 101274282. Its totient is φ = 101274280.

The previous prime is 101274211. The next prime is 101274289. The reversal of 101274281 is 182472101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86955625 + 14318656 = 9325^2 + 3784^2 .

It is a cyclic number.

It is not a de Polignac number, because 101274281 - 210 = 101273257 is a prime.

It is a super-2 number, since 2×1012742812 = 20512959984133922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101274281.

It is not a weakly prime, because it can be changed into another prime (101274289) 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 as a sum of consecutive naturals, namely, 50637140 + 50637141.

It is an arithmetic number, because the mean of its divisors is an integer number (50637141).

Almost surely, 2101274281 is an apocalyptic number.

It is an amenable number.

101274281 is a deficient number, since it is larger than the sum of its proper divisors (1).

101274281 is an equidigital number, since it uses as much as digits as its factorization.

101274281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 101274281 is about 10063.5123590126. The cubic root of 101274281 is about 466.1221305510.

The spelling of 101274281 in words is "one hundred one million, two hundred seventy-four thousand, two hundred eighty-one".