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61360491 = 329705293
BaseRepresentation
bin1110101000010…
…0100101101011
311021110102202210
43222010211223
5111202013431
610031100203
71343361363
oct352044553
9137412683
1061360491
1131700055
1218671663
13c9352aa
1482139a3
1555c0d46
hex3a8496b

61360491 has 8 divisors (see below), whose sum is σ = 84635280. Its totient is φ = 39496352.

The previous prime is 61360487. The next prime is 61360513. The reversal of 61360491 is 19406316.

61360491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61360491 - 22 = 61360487 is a prime.

It is a super-2 number, since 2×613604912 = 7530219711522162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61360421) 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 7 ways as a sum of consecutive naturals, for example, 352560 + ... + 352733.

It is an arithmetic number, because the mean of its divisors is an integer number (10579410).

Almost surely, 261360491 is an apocalyptic number.

61360491 is a deficient number, since it is larger than the sum of its proper divisors (23274789).

61360491 is a wasteful number, since it uses less digits than its factorization.

61360491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705325.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 61360491 is about 7833.2937516730. The cubic root of 61360491 is about 394.4236448259.

The spelling of 61360491 in words is "sixty-one million, three hundred sixty thousand, four hundred ninety-one".

Divisors: 1 3 29 87 705293 2115879 20453497 61360491