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57103143 = 344342967
BaseRepresentation
bin1101100111010…
…1001100100111
310222110010210020
43121311030213
5104104300033
65355530223
71262240316
oct331651447
9128403706
1057103143
112a262489
1217159973
13baa4556
14782627d
15502e6b3
hex3675327

57103143 has 8 divisors (see below), whose sum is σ = 76311168. Its totient is φ = 37981944.

The previous prime is 57103139. The next prime is 57103159. The reversal of 57103143 is 34130175.

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

It is not a de Polignac number, because 57103143 - 22 = 57103139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57103243) 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, 20155 + ... + 22812.

It is an arithmetic number, because the mean of its divisors is an integer number (9538896).

Almost surely, 257103143 is an apocalyptic number.

57103143 is a deficient number, since it is larger than the sum of its proper divisors (19208025).

57103143 is a wasteful number, since it uses less digits than its factorization.

57103143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43413.

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 57103143 is about 7556.6621599751. The cubic root of 57103143 is about 385.0821053876.

The spelling of 57103143 in words is "fifty-seven million, one hundred three thousand, one hundred forty-three".

Divisors: 1 3 443 1329 42967 128901 19034381 57103143