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61349171 = 134719167
BaseRepresentation
bin1110101000000…
…1110100110011
311021102212020112
43222001310303
5111201133141
610030531535
71343313362
oct352016463
9137385215
1061349171
11316a25a4
1218666bab
13c9300b0
14820d7d9
1555bc7eb
hex3a81d33

61349171 has 4 divisors (see below), whose sum is σ = 66068352. Its totient is φ = 56629992.

The previous prime is 61349083. The next prime is 61349173. The reversal of 61349171 is 17194316.

61349171 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 not a de Polignac number, because 61349171 - 218 = 61087027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61349173) 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, 2359571 + ... + 2359596.

It is an arithmetic number, because the mean of its divisors is an integer number (16517088).

Almost surely, 261349171 is an apocalyptic number.

61349171 is a deficient number, since it is larger than the sum of its proper divisors (4719181).

61349171 is a wasteful number, since it uses less digits than its factorization.

61349171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719180.

The product of its digits is 4536, while the sum is 32.

The square root of 61349171 is about 7832.5711615025. The cubic root of 61349171 is about 394.3993884454.

The spelling of 61349171 in words is "sixty-one million, three hundred forty-nine thousand, one hundred seventy-one".

Divisors: 1 13 4719167 61349171