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57506241 = 3131474519
BaseRepresentation
bin1101101101011…
…1100111000001
311000012121201210
43123113213001
5104210144431
65412320333
71265536452
oct333274701
9130177653
1057506241
112a508321
12173130a9
13bbb5b80
1478cd129
1550add46
hex36d79c1

57506241 has 8 divisors (see below), whose sum is σ = 82573120. Its totient is φ = 35388432.

The previous prime is 57506227. The next prime is 57506243. The reversal of 57506241 is 14260575.

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

It is not a de Polignac number, because 57506241 - 211 = 57504193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57506199 and 57506208.

It is not an unprimeable number, because it can be changed into a prime (57506243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 737221 + ... + 737298.

It is an arithmetic number, because the mean of its divisors is an integer number (10321640).

Almost surely, 257506241 is an apocalyptic number.

It is an amenable number.

57506241 is a deficient number, since it is larger than the sum of its proper divisors (25066879).

57506241 is a wasteful number, since it uses less digits than its factorization.

57506241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474535.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 57506241 is about 7583.2869522391. The cubic root of 57506241 is about 385.9860953227.

The spelling of 57506241 in words is "fifty-seven million, five hundred six thousand, two hundred forty-one".

Divisors: 1 3 13 39 1474519 4423557 19168747 57506241