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61199349 = 334758789
BaseRepresentation
bin1110100101110…
…1001111110101
311021011020201120
43221131033311
5111131334344
610023414153
71342120521
oct351351765
9137136646
1061199349
11315aaa82
12185b4359
13c8a9b43
1481b0d81
15558d219
hex3a5d3f5

61199349 has 8 divisors (see below), whose sum is σ = 81835680. Its totient is φ = 40681296.

The previous prime is 61199273. The next prime is 61199377. The reversal of 61199349 is 94399116.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61199349 - 28 = 61199093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61199349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61191349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28354 + ... + 30435.

It is an arithmetic number, because the mean of its divisors is an integer number (10229460).

Almost surely, 261199349 is an apocalyptic number.

It is an amenable number.

61199349 is a deficient number, since it is larger than the sum of its proper divisors (20636331).

61199349 is a wasteful number, since it uses less digits than its factorization.

61199349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59139.

The product of its digits is 52488, while the sum is 42.

The square root of 61199349 is about 7823.0012782819. The cubic root of 61199349 is about 394.0780699394.

The spelling of 61199349 in words is "sixty-one million, one hundred ninety-nine thousand, three hundred forty-nine".

Divisors: 1 3 347 1041 58789 176367 20399783 61199349