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121316471 = 1717594057
BaseRepresentation
bin1110011101100…
…10010001110111
322110021111220122
413032302101313
5222024111341
620012122155
73002113223
oct716622167
9273244818
10121316471
1162530951
123476635b
131c1981c3
141217d783
15a9b594b
hex73b2477

121316471 has 8 divisors (see below), whose sum is σ = 128557440. Its totient is φ = 114087168.

The previous prime is 121316443. The next prime is 121316473. The reversal of 121316471 is 174613121.

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 121316471 - 26 = 121316407 is a prime.

It is a super-3 number, since 3×1213164713 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121316471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121316473) 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, 27875 + ... + 31931.

It is an arithmetic number, because the mean of its divisors is an integer number (16069680).

Almost surely, 2121316471 is an apocalyptic number.

121316471 is a deficient number, since it is larger than the sum of its proper divisors (7240969).

121316471 is a wasteful number, since it uses less digits than its factorization.

121316471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833.

The product of its digits is 1008, while the sum is 26.

The square root of 121316471 is about 11014.3756518470. The cubic root of 121316471 is about 495.0395791908.

Adding to 121316471 its reverse (174613121), we get a palindrome (295929592).

The spelling of 121316471 in words is "one hundred twenty-one million, three hundred sixteen thousand, four hundred seventy-one".

Divisors: 1 17 1759 4057 29903 68969 7136263 121316471