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61343061 = 3135213019
BaseRepresentation
bin1110101000000…
…0010101010101
311021102112212020
43222000111111
5111200434221
610030443353
71343256513
oct352002525
9137375766
1061343061
1131698a4a
1218663559
13c92a390
14820b4b3
1555baac6
hex3a80555

61343061 has 16 divisors (see below), whose sum is σ = 88280640. Its totient is φ = 37664640.

The previous prime is 61343053. The next prime is 61343071. The reversal of 61343061 is 16034316.

It is not a de Polignac number, because 61343061 - 23 = 61343053 is a prime.

It is a super-2 number, since 2×613430612 = 7525942265699442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61343041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18810 + ... + 21828.

It is an arithmetic number, because the mean of its divisors is an integer number (5517540).

Almost surely, 261343061 is an apocalyptic number.

It is an amenable number.

61343061 is a deficient number, since it is larger than the sum of its proper divisors (26937579).

61343061 is a wasteful number, since it uses less digits than its factorization.

61343061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3556.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 61343061 is about 7832.1811138405. The cubic root of 61343061 is about 394.3862947598.

Adding to 61343061 its reverse (16034316), we get a palindrome (77377377).

The spelling of 61343061 in words is "sixty-one million, three hundred forty-three thousand, sixty-one".

Divisors: 1 3 13 39 521 1563 3019 6773 9057 20319 39247 117741 1572899 4718697 20447687 61343061