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57804379 = 794091789
BaseRepresentation
bin1101110010000…
…0011001011011
311000202202200221
43130200121123
5104244220004
65422540511
71301220613
oct334403133
9130682627
1057804379
112a6a1316
1217437737
13bc8b799
147969a43
15511c354
hex372065b

57804379 has 8 divisors (see below), whose sum is σ = 58712000. Its totient is φ = 56901312.

The previous prime is 57804347. The next prime is 57804389. The reversal of 57804379 is 97340875.

It is a happy number.

57804379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57804379 - 25 = 57804347 is a prime.

It is a super-3 number, since 3×578043793 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57804389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31417 + ... + 33205.

It is an arithmetic number, because the mean of its divisors is an integer number (7339000).

Almost surely, 257804379 is an apocalyptic number.

57804379 is a deficient number, since it is larger than the sum of its proper divisors (907621).

57804379 is a wasteful number, since it uses less digits than its factorization.

57804379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 57804379 is about 7602.9191104470. The cubic root of 57804379 is about 386.6519872383.

The spelling of 57804379 in words is "fifty-seven million, eight hundred four thousand, three hundred seventy-nine".

Divisors: 1 79 409 1789 32311 141331 731701 57804379