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122840341 = 1310193557
BaseRepresentation
bin1110101001001…
…10010100010101
322120010221021021
413110212110111
5222421342331
620104521141
73021061051
oct724462425
9276127237
10122840341
1163381848
12351801b1
131c5ac9c0
1412458c61
15abb7211
hex7526515

122840341 has 8 divisors (see below), whose sum is σ = 133600824. Its totient is φ = 112267200.

The previous prime is 122840323. The next prime is 122840423. The reversal of 122840341 is 143048221.

It can be written as a sum of positive squares in 4 ways, for example, as 15800625 + 107039716 = 3975^2 + 10346^2 .

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 122840341 - 27 = 122840213 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 (122840041) 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 7 ways as a sum of consecutive naturals, for example, 45466 + ... + 48091.

It is an arithmetic number, because the mean of its divisors is an integer number (16700103).

Almost surely, 2122840341 is an apocalyptic number.

It is an amenable number.

122840341 is a deficient number, since it is larger than the sum of its proper divisors (10760483).

122840341 is a wasteful number, since it uses less digits than its factorization.

122840341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93671.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 122840341 is about 11083.3361854633. The cubic root of 122840341 is about 497.1037100700.

Adding to 122840341 its reverse (143048221), we get a palindrome (265888562).

The spelling of 122840341 in words is "one hundred twenty-two million, eight hundred forty thousand, three hundred forty-one".

Divisors: 1 13 101 1313 93557 1216241 9449257 122840341