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57130077 = 335395381
BaseRepresentation
bin1101100111101…
…1110001011101
310222111111201210
43121323301131
5104111130302
65400255033
71262411664
oct331736135
9128444653
1057130077
112a280744
1217171479
13bab38a4
147831ddb
15503766c
hex367bc5d

57130077 has 8 divisors (see below), whose sum is σ = 76209120. Its totient is φ = 38068880.

The previous prime is 57130009. The next prime is 57130103. The reversal of 57130077 is 77003175.

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 57130077 - 27 = 57129949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57150077) 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 7 ways as a sum of consecutive naturals, for example, 7927 + ... + 13307.

It is an arithmetic number, because the mean of its divisors is an integer number (9526140).

Almost surely, 257130077 is an apocalyptic number.

It is an amenable number.

57130077 is a deficient number, since it is larger than the sum of its proper divisors (19079043).

57130077 is a wasteful number, since it uses less digits than its factorization.

57130077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8923.

The product of its (nonzero) digits is 5145, while the sum is 30.

The square root of 57130077 is about 7558.4440859214. Note that the first 3 decimals coincide. The cubic root of 57130077 is about 385.1426401242.

The spelling of 57130077 in words is "fifty-seven million, one hundred thirty thousand, seventy-seven".

Divisors: 1 3 3539 5381 10617 16143 19043359 57130077