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61352253 = 3237184241
BaseRepresentation
bin1110101000001…
…0100100111101
311021110000110200
43222002210331
5111201233003
610030554113
71343325354
oct352024475
9137400420
1061352253
11316a4946
1218668939
13c931611
14821099b
1555bd6a3
hex3a8293d

61352253 has 12 divisors (see below), whose sum is σ = 91015548. Its totient is φ = 39795840.

The previous prime is 61352251. The next prime is 61352267. The reversal of 61352253 is 35225316.

61352253 is a `hidden beast` number, since 61 + 352 + 253 = 666.

61352253 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 46744569 + 14607684 = 6837^2 + 3822^2 .

It is not a de Polignac number, because 61352253 - 21 = 61352251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61352251) 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 11 ways as a sum of consecutive naturals, for example, 91788 + ... + 92453.

It is an arithmetic number, because the mean of its divisors is an integer number (7584629).

Almost surely, 261352253 is an apocalyptic number.

It is an amenable number.

61352253 is a deficient number, since it is larger than the sum of its proper divisors (29663295).

61352253 is a wasteful number, since it uses less digits than its factorization.

61352253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184284 (or 184281 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 61352253 is about 7832.7679015786. The cubic root of 61352253 is about 394.4059928191.

Adding to 61352253 its reverse (35225316), we get a palindrome (96577569).

The spelling of 61352253 in words is "sixty-one million, three hundred fifty-two thousand, two hundred fifty-three".

Divisors: 1 3 9 37 111 333 184241 552723 1658169 6816917 20450751 61352253