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57081135730 = 2523431575821
BaseRepresentation
bin110101001010010011…
…010000001001110010
312110100002020010201011
4311022103100021302
51413400232320410
642120034501134
74060344435223
oct651223201162
9173302203634
1057081135730
11222318a4143
12b0904347aa
1354c8b12c78
142a96d6b24a
15174138918a
hexd4a4d0272

57081135730 has 32 divisors (see below), whose sum is σ = 107462204928. Its totient is φ = 21789028800.

The previous prime is 57081135721. The next prime is 57081135737. The reversal of 57081135730 is 3753118075.

It is not an unprimeable number, because it can be changed into a prime (57081135737) 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, 188781 + ... + 387040.

It is an arithmetic number, because the mean of its divisors is an integer number (3358193904).

Almost surely, 257081135730 is an apocalyptic number.

57081135730 is a deficient number, since it is larger than the sum of its proper divisors (50381069198).

57081135730 is a wasteful number, since it uses less digits than its factorization.

57081135730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576282.

The product of its (nonzero) digits is 88200, while the sum is 40.

The spelling of 57081135730 in words is "fifty-seven billion, eighty-one million, one hundred thirty-five thousand, seven hundred thirty".

Divisors: 1 2 5 10 23 46 115 230 431 862 2155 4310 9913 19826 49565 99130 575821 1151642 2879105 5758210 13243883 26487766 66219415 132438830 248178851 496357702 1240894255 2481788510 5708113573 11416227146 28540567865 57081135730