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121324445 = 5117131069
BaseRepresentation
bin1110011101101…
…00001110011101
322110021220211222
413032310032131
5222024340240
620012223125
73002145404
oct716641635
9273256758
10121324445
1162536940
123476aaa5
131c19ba18
141218263b
15a9b7eb5
hex73b439d

121324445 has 16 divisors (see below), whose sum is σ = 161066880. Its totient is φ = 86990400.

The previous prime is 121324439. The next prime is 121324451. The reversal of 121324445 is 544423121.

It is an interprime number because it is at equal distance from previous prime (121324439) and next prime (121324451).

It is not a de Polignac number, because 121324445 - 212 = 121320349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11630 + ... + 19439.

It is an arithmetic number, because the mean of its divisors is an integer number (10066680).

Almost surely, 2121324445 is an apocalyptic number.

It is an amenable number.

121324445 is a deficient number, since it is larger than the sum of its proper divisors (39742435).

121324445 is a wasteful number, since it uses less digits than its factorization.

121324445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31156.

The product of its digits is 3840, while the sum is 26.

The square root of 121324445 is about 11014.7376273791. The cubic root of 121324445 is about 495.0504250913.

Adding to 121324445 its reverse (544423121), we get a palindrome (665747566).

The spelling of 121324445 in words is "one hundred twenty-one million, three hundred twenty-four thousand, four hundred forty-five".

Divisors: 1 5 11 55 71 355 781 3905 31069 155345 341759 1708795 2205899 11029495 24264889 121324445