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121874241 = 31713717443
BaseRepresentation
bin1110100001110…
…10011101000001
322111022212000210
413100322131001
5222144433431
620032104333
73006625326
oct720723501
9274285023
10121874241
1162881a15
12349950a9
131c332048
1412286b4d
15aa75d46
hex743a741

121874241 has 16 divisors (see below), whose sum is σ = 173323584. Its totient is φ = 75907584.

The previous prime is 121874239. The next prime is 121874251. The reversal of 121874241 is 142478121.

It is not a de Polignac number, because 121874241 - 21 = 121874239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121874199 and 121874208.

It is not an unprimeable number, because it can be changed into a prime (121874201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1735 + ... + 15708.

It is an arithmetic number, because the mean of its divisors is an integer number (10832724).

Almost surely, 2121874241 is an apocalyptic number.

It is an amenable number.

121874241 is a deficient number, since it is larger than the sum of its proper divisors (51449343).

121874241 is a wasteful number, since it uses less digits than its factorization.

121874241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17600.

The product of its digits is 3584, while the sum is 30.

The square root of 121874241 is about 11039.6667069255. Note that the first 3 decimals coincide. The cubic root of 121874241 is about 495.7970914420.

The spelling of 121874241 in words is "one hundred twenty-one million, eight hundred seventy-four thousand, two hundred forty-one".

Divisors: 1 3 17 51 137 411 2329 6987 17443 52329 296531 889593 2389691 7169073 40624747 121874241