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121743349 = 7134093271
BaseRepresentation
bin1110100000110…
…10011111110101
322111002012110221
413100122133311
5222131241344
620025214341
73005541610
oct720323765
9274065427
10121743349
11627a2642
12349313b1
131c2b75b0
1412251177
15aa4c184
hex741a7f5

121743349 has 16 divisors (see below), whose sum is σ = 150250240. Its totient is φ = 96059520.

The previous prime is 121743329. The next prime is 121743379. The reversal of 121743349 is 943347121.

It is a cyclic number.

It is not a de Polignac number, because 121743349 - 213 = 121735157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121743329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35584 + ... + 38854.

It is an arithmetic number, because the mean of its divisors is an integer number (9390640).

Almost surely, 2121743349 is an apocalyptic number.

It is an amenable number.

121743349 is a deficient number, since it is larger than the sum of its proper divisors (28506891).

121743349 is a wasteful number, since it uses less digits than its factorization.

121743349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700.

The product of its digits is 18144, while the sum is 34.

The square root of 121743349 is about 11033.7368556623. The cubic root of 121743349 is about 495.6195337706.

The spelling of 121743349 in words is "one hundred twenty-one million, seven hundred forty-three thousand, three hundred forty-nine".

Divisors: 1 7 13 91 409 2863 3271 5317 22897 37219 42523 297661 1337839 9364873 17391907 121743349