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61371043 = 105158393
BaseRepresentation
bin1110101000011…
…1001010100011
311021110222020121
43222013022203
5111202333133
610031221111
71343434216
oct352071243
9137428217
1061371043
1131707a78
1218677797
13c93a036
14821777d
1555c402d
hex3a872a3

61371043 has 4 divisors (see below), whose sum is σ = 61430488. Its totient is φ = 61311600.

The previous prime is 61371029. The next prime is 61371053. The reversal of 61371043 is 34017316.

61371043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-61371043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61370999 and 61371017.

It is not an unprimeable number, because it can be changed into a prime (61371053) 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 3 ways as a sum of consecutive naturals, for example, 28146 + ... + 30247.

It is an arithmetic number, because the mean of its divisors is an integer number (15357622).

Almost surely, 261371043 is an apocalyptic number.

61371043 is a deficient number, since it is larger than the sum of its proper divisors (59445).

61371043 is a wasteful number, since it uses less digits than its factorization.

61371043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59444.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 61371043 is about 7833.9672580373. The cubic root of 61371043 is about 394.4462528575.

Adding to 61371043 its reverse (34017316), we get a palindrome (95388359).

The spelling of 61371043 in words is "sixty-one million, three hundred seventy-one thousand, forty-three".

Divisors: 1 1051 58393 61371043