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57401271 = 334151853
BaseRepresentation
bin1101101011110…
…1111110110111
311000000021202000
43122331332313
5104143320041
65410150343
71264621434
oct332757667
9130007660
1057401271
112a446474
12172823b3
13bb7a165
1478a2b8b
15508cbb6
hex36bdfb7

57401271 has 16 divisors (see below), whose sum is σ = 87114720. Its totient is φ = 37333440.

The previous prime is 57401257. The next prime is 57401297. The reversal of 57401271 is 17210475.

It is not a de Polignac number, because 57401271 - 215 = 57368503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57402271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24820 + ... + 27033.

It is an arithmetic number, because the mean of its divisors is an integer number (5444670).

Almost surely, 257401271 is an apocalyptic number.

57401271 is a deficient number, since it is larger than the sum of its proper divisors (29713449).

57401271 is a wasteful number, since it uses less digits than its factorization.

57401271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51903 (or 51897 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 57401271 is about 7576.3626497152. The cubic root of 57401271 is about 385.7510968395.

The spelling of 57401271 in words is "fifty-seven million, four hundred one thousand, two hundred seventy-one".

Divisors: 1 3 9 27 41 123 369 1107 51853 155559 466677 1400031 2125973 6377919 19133757 57401271