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61470317 = 1710135801
BaseRepresentation
bin1110101001111…
…1011001101101
311021200000102102
43222133121231
5111214022232
610033304445
71344326516
oct352373155
9137600372
1061470317
1131775617
1218705125
13c97328c
148241a0d
1555e3662
hex3a9f66d

61470317 has 8 divisors (see below), whose sum is σ = 65732472. Its totient is φ = 57280000.

The previous prime is 61470287. The next prime is 61470319. The reversal of 61470317 is 71307416.

It can be written as a sum of positive squares in 4 ways, for example, as 23290276 + 38180041 = 4826^2 + 6179^2 .

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 61470317 - 214 = 61453933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61470317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61470319) 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, 16184 + ... + 19617.

It is an arithmetic number, because the mean of its divisors is an integer number (8216559).

Almost surely, 261470317 is an apocalyptic number.

It is an amenable number.

61470317 is a deficient number, since it is larger than the sum of its proper divisors (4262155).

61470317 is a wasteful number, since it uses less digits than its factorization.

61470317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35919.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 61470317 is about 7840.3008233103. The cubic root of 61470317 is about 394.6588241298.

The spelling of 61470317 in words is "sixty-one million, four hundred seventy thousand, three hundred seventeen".

Divisors: 1 17 101 1717 35801 608617 3615901 61470317