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51587138132310 = 23511507073082901
BaseRepresentation
bin10111011101011000100010…
…00010110001100101010110
320202122200102100120011120010
423232230101002301211112
523230200424330213220
6301414445403421050
713603022242101504
oct1356542102614526
9222580370504503
1051587138132310
1115489a89668a60
125951b24224786
1322a2852a7c501
14ca4b8ba45674
155e6d76eca1e0
hex2eeb110b1956

51587138132310 has 64 divisors (see below), whose sum is σ = 135067214548224. Its totient is φ = 12505722192000.

The previous prime is 51587138132297. The next prime is 51587138132329. The reversal of 51587138132310 is 1323183178515.

It is a happy number.

It is a super-2 number, since 2×515871381323102 (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51587138132310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15191860 + ... + 18274760.

It is an arithmetic number, because the mean of its divisors is an integer number (2110425227316).

Almost surely, 251587138132310 is an apocalyptic number.

51587138132310 is an abundant number, since it is smaller than the sum of its proper divisors (83480076415914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51587138132310 is a wasteful number, since it uses less digits than its factorization.

51587138132310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133629.

The product of its (nonzero) digits is 604800, while the sum is 48.

The spelling of 51587138132310 in words is "fifty-one trillion, five hundred eighty-seven billion, one hundred thirty-eight million, one hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 50707 101414 152121 253535 304242 507070 557777 760605 1115554 1521210 1673331 2788885 3082901 3346662 5577770 6165802 8366655 9248703 15414505 16733310 18497406 30829010 33911911 46243515 67823822 92487030 101735733 169559555 203471466 339119110 508678665 1017357330 156324661007 312649322014 468973983021 781623305035 937947966042 1563246610070 1719571271077 2344869915105 3439142542154 4689739830210 5158713813231 8597856355385 10317427626462 17195712710770 25793569066155 51587138132310