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55315770315652 = 22721183309116449
BaseRepresentation
bin11001001001111001101001…
…10101110001001110000100
321020212010200010211110102001
430210330310311301032010
524222243144200100102
6313351414123355044
714436301232526400
oct1444746465611604
9236763603743361
1055315770315652
111669731729a470
126254697682a84
1324b3340920662
14d93424756100
1565dd542b6487
hex324f34d71384

55315770315652 has 72 divisors (see below), whose sum is σ = 124324163258400. Its totient is φ = 21291940938240.

The previous prime is 55315770315623. The next prime is 55315770315679. The reversal of 55315770315652 is 25651307751355.

It is a super-3 number, since 3×553157703156523 (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 55315770315593 and 55315770315602.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154379277 + ... + 154737172.

It is an arithmetic number, because the mean of its divisors is an integer number (1726724489700).

Almost surely, 255315770315652 is an apocalyptic number.

It is an amenable number.

55315770315652 is an abundant number, since it is smaller than the sum of its proper divisors (69008392942748).

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

55315770315652 is a wasteful number, since it uses less digits than its factorization.

55315770315652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309116561 (or 309116552 counting only the distinct ones).

The product of its (nonzero) digits is 16537500, while the sum is 55.

The spelling of 55315770315652 in words is "fifty-five trillion, three hundred fifteen billion, seven hundred seventy million, three hundred fifteen thousand, six hundred fifty-two".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 83 98 154 166 196 308 332 539 581 913 1078 1162 1826 2156 2324 3652 4067 6391 8134 12782 16268 25564 44737 89474 178948 309116449 618232898 1236465796 2163815143 3400280939 4327630286 6800561878 8655260572 13601123756 15146706001 23801966573 25656665267 30293412002 47603933146 51313330534 60586824004 95207866292 102626661068 166613766011 179596656869 282223317937 333227532022 359193313738 564446635874 666455064044 718386627476 1128893271748 1257176598083 1975563225559 2514353196166 3951126451118 5028706392332 7902252902236 13828942578913 27657885157826 55315770315652