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61065345 = 35112316091
BaseRepresentation
bin1110100011110…
…0100010000001
311020220102220110
43220330202001
5111113042340
610020501533
71341022035
oct350744201
9136812813
1061065345
1131519330
121854a8a9
13c860b53
1481781c5
155563680
hex3a3c881

61065345 has 32 divisors (see below), whose sum is σ = 111227904. Its totient is φ = 28318400.

The previous prime is 61065337. The next prime is 61065353. The reversal of 61065345 is 54356016.

It is an interprime number because it is at equal distance from previous prime (61065337) and next prime (61065353).

It is not a de Polignac number, because 61065345 - 23 = 61065337 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 4251 + ... + 11840.

It is an arithmetic number, because the mean of its divisors is an integer number (3475872).

Almost surely, 261065345 is an apocalyptic number.

It is an amenable number.

61065345 is a deficient number, since it is larger than the sum of its proper divisors (50162559).

61065345 is a wasteful number, since it uses less digits than its factorization.

61065345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16133.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 61065345 is about 7814.4318411513. The cubic root of 61065345 is about 393.7902312130.

The spelling of 61065345 in words is "sixty-one million, sixty-five thousand, three hundred forty-five".

Divisors: 1 3 5 11 15 23 33 55 69 115 165 253 345 759 1265 3795 16091 48273 80455 177001 241365 370093 531003 885005 1110279 1850465 2655015 4071023 5551395 12213069 20355115 61065345