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61353442 = 2171804513
BaseRepresentation
bin1110101000001…
…0110111100010
311021110002002201
43222002313202
5111201302232
610031003414
71343332003
oct352026742
9137402081
1061353442
11316a5827
121866956a
13c932017
1482111aa
1555bdbe7
hex3a82de2

61353442 has 8 divisors (see below), whose sum is σ = 97443756. Its totient is φ = 28872192.

The previous prime is 61353431. The next prime is 61353449. The reversal of 61353442 is 24435316.

61353442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 59768361 + 1585081 = 7731^2 + 1259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×613534423 (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61353442.

It is not an unprimeable number, because it can be changed into a prime (61353449) 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, 902223 + ... + 902290.

Almost surely, 261353442 is an apocalyptic number.

61353442 is a deficient number, since it is larger than the sum of its proper divisors (36090314).

61353442 is a wasteful number, since it uses less digits than its factorization.

61353442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804532.

The product of its digits is 8640, while the sum is 28.

The square root of 61353442 is about 7832.8438003065. The cubic root of 61353442 is about 394.4085406511.

Adding to 61353442 its reverse (24435316), we get a palindrome (85788758).

The spelling of 61353442 in words is "sixty-one million, three hundred fifty-three thousand, four hundred forty-two".

Divisors: 1 2 17 34 1804513 3609026 30676721 61353442