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11797405 = 517138793
BaseRepresentation
bin101101000000…
…001110011101
3211012100222221
4231000032131
511010004110
61100505341
7202163524
oct55001635
924170887
1011797405
116728624
123b4b251
1325a0a19
1417d14bb
1510807da
hexb4039d

11797405 has 8 divisors (see below), whose sum is σ = 14989752. Its totient is φ = 8882688.

The previous prime is 11797363. The next prime is 11797441. The reversal of 11797405 is 50479711.

It can be written as a sum of positive squares in 4 ways, for example, as 2683044 + 9114361 = 1638^2 + 3019^2 .

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 11797405 - 27 = 11797277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69312 + ... + 69481.

It is an arithmetic number, because the mean of its divisors is an integer number (1873719).

Almost surely, 211797405 is an apocalyptic number.

It is an amenable number.

11797405 is a deficient number, since it is larger than the sum of its proper divisors (3192347).

11797405 is a wasteful number, since it uses less digits than its factorization.

11797405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138815.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 11797405 is about 3434.7350698416. The cubic root of 11797405 is about 227.6471213577.

The spelling of 11797405 in words is "eleven million, seven hundred ninety-seven thousand, four hundred five".

Divisors: 1 5 17 85 138793 693965 2359481 11797405