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57125669 = 374137657
BaseRepresentation
bin1101100111101…
…0101100100101
310222111021200112
43121322230211
5104111010134
65400222405
71262363066
oct331725445
9128437615
1057125669
112a2783a7
121716aa05
13bab1893
14783056d
1550361ce
hex367ab25

57125669 has 8 divisors (see below), whose sum is σ = 60102168. Its totient is φ = 54224640.

The previous prime is 57125659. The next prime is 57125671. The reversal of 57125669 is 96652175.

It can be written as a sum of positive squares in 4 ways, for example, as 13235044 + 43890625 = 3638^2 + 6625^2 .

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 57125669 - 212 = 57121573 is a prime.

It is a super-2 number, since 2×571256692 = 6526684117395122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57125659) 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, 17312 + ... + 20345.

It is an arithmetic number, because the mean of its divisors is an integer number (7512771).

Almost surely, 257125669 is an apocalyptic number.

It is an amenable number.

57125669 is a deficient number, since it is larger than the sum of its proper divisors (2976499).

57125669 is a wasteful number, since it uses less digits than its factorization.

57125669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37735.

The product of its digits is 113400, while the sum is 41.

The square root of 57125669 is about 7558.1524858923. The cubic root of 57125669 is about 385.1327343530.

The spelling of 57125669 in words is "fifty-seven million, one hundred twenty-five thousand, six hundred sixty-nine".

Divisors: 1 37 41 1517 37657 1393309 1543937 57125669