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57100253 = 747197881
BaseRepresentation
bin1101100111010…
…0011111011101
310222102222211012
43121310133131
5104104202003
65355505005
71262226020
oct331643735
9128388735
1057100253
112a2602a1
1217158165
13baa3142
1478251b7
15502d8d8
hex36747dd

57100253 has 16 divisors (see below), whose sum is σ = 67060224. Its totient is φ = 47604480.

The previous prime is 57100247. The next prime is 57100271. The reversal of 57100253 is 35200175.

It is not a de Polignac number, because 57100253 - 26 = 57100189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57100223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64373 + ... + 65253.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 257100253 is an apocalyptic number.

It is an amenable number.

57100253 is a deficient number, since it is larger than the sum of its proper divisors (9959971).

57100253 is a wasteful number, since it uses less digits than its factorization.

57100253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 57100253 is about 7556.4709355624. The cubic root of 57100253 is about 385.0756089206.

The spelling of 57100253 in words is "fifty-seven million, one hundred thousand, two hundred fifty-three".

Divisors: 1 7 47 197 329 881 1379 6167 9259 41407 64813 173557 289849 1214899 8157179 57100253