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121297061 = 1012574673
BaseRepresentation
bin1110011101011…
…01100010100101
322110020112021202
413032231202211
5222023001221
620011452245
73002002514
oct716554245
9273215252
10121297061
1162518306
1234757085
131c18c412
141217667b
15a9aed0b
hex73ad8a5

121297061 has 8 divisors (see below), whose sum is σ = 123000984. Its totient is φ = 119603200.

The previous prime is 121297049. The next prime is 121297073. The reversal of 121297061 is 160792121.

It is an interprime number because it is at equal distance from previous prime (121297049) and next prime (121297073).

It can be written as a sum of positive squares in 4 ways, for example, as 112996900 + 8300161 = 10630^2 + 2881^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121297061 - 26 = 121296997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121297361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23621 + ... + 28293.

It is an arithmetic number, because the mean of its divisors is an integer number (15375123).

Almost surely, 2121297061 is an apocalyptic number.

It is an amenable number.

121297061 is a deficient number, since it is larger than the sum of its proper divisors (1703923).

121297061 is a wasteful number, since it uses less digits than its factorization.

121297061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 121297061 is about 11013.4944953906. The cubic root of 121297061 is about 495.0131765360.

The spelling of 121297061 in words is "one hundred twenty-one million, two hundred ninety-seven thousand, sixty-one".

Divisors: 1 101 257 4673 25957 471973 1200961 121297061