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57421741 = 1311339089
BaseRepresentation
bin1101101100001…
…0111110101101
311000001022211011
43123002332231
5104144443431
65410425221
71265035216
oct333027655
9130038734
1057421741
112a45a893
1217292211
13bb86580
1478aa40d
155093cb1
hex36c2fad

57421741 has 8 divisors (see below), whose sum is σ = 62387640. Its totient is φ = 52534272.

The previous prime is 57421729. The next prime is 57421753. The reversal of 57421741 is 14712475.

It is an interprime number because it is at equal distance from previous prime (57421729) and next prime (57421753).

It can be written as a sum of positive squares in 4 ways, for example, as 2735716 + 54686025 = 1654^2 + 7395^2 .

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 57421741 - 215 = 57388973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57421141) 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, 18076 + ... + 21013.

It is an arithmetic number, because the mean of its divisors is an integer number (7798455).

Almost surely, 257421741 is an apocalyptic number.

It is an amenable number.

57421741 is a deficient number, since it is larger than the sum of its proper divisors (4965899).

57421741 is a wasteful number, since it uses less digits than its factorization.

57421741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39215.

The product of its digits is 7840, while the sum is 31.

The square root of 57421741 is about 7577.7134414017. The cubic root of 57421741 is about 385.7969459201.

The spelling of 57421741 in words is "fifty-seven million, four hundred twenty-one thousand, seven hundred forty-one".

Divisors: 1 13 113 1469 39089 508157 4417057 57421741