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57611013 = 343446597
BaseRepresentation
bin1101101111000…
…1001100000101
311000101221110020
43123301030011
5104222023023
65414445353
71266454065
oct333611405
9130357406
1057611013
112a57a009
1217363859
13bc21775
1479193a5
1550cede3
hex36f1305

57611013 has 8 divisors (see below), whose sum is σ = 78601248. Its totient is φ = 37514064.

The previous prime is 57611009. The next prime is 57611017. The reversal of 57611013 is 31011675.

57611013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57611009) and next prime (57611017).

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

It is not a de Polignac number, because 57611013 - 22 = 57611009 is a prime.

It is a super-3 number, since 3×576110133 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57611017) 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, 223170 + ... + 223427.

It is an arithmetic number, because the mean of its divisors is an integer number (9825156).

Almost surely, 257611013 is an apocalyptic number.

It is an amenable number.

57611013 is a deficient number, since it is larger than the sum of its proper divisors (20990235).

57611013 is a wasteful number, since it uses less digits than its factorization.

57611013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446643.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 57611013 is about 7590.1918948074. The cubic root of 57611013 is about 386.2203655483.

Adding to 57611013 its reverse (31011675), we get a palindrome (88622688).

The spelling of 57611013 in words is "fifty-seven million, six hundred eleven thousand, thirteen".

Divisors: 1 3 43 129 446597 1339791 19203671 57611013