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15109486630368 = 25313314710777659
BaseRepresentation
bin1101101111011111001110…
…0101010101010111100000
31222111110020002202110212120
43123313303211111113200
53440023212034132433
652045111412024240
73116424110200434
oct333676345252740
958443202673776
1015109486630368
1148a5996332469
1218403a0602080
13857a84263070
143a34358229c4
151b30746527b3
hexdbdf39555e0

15109486630368 has 384 divisors, whose sum is σ = 45450737418240. Its totient is φ = 4362167900160.

The previous prime is 15109486630363. The next prime is 15109486630391. The reversal of 15109486630368 is 86303668490151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15109486630361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194523123 + ... + 194600781.

It is an arithmetic number, because the mean of its divisors is an integer number (118361295360).

Almost surely, 215109486630368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15109486630368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22725368709120).

15109486630368 is an abundant number, since it is smaller than the sum of its proper divisors (30341250787872).

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

15109486630368 is a wasteful number, since it uses less digits than its factorization.

15109486630368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77870 (or 77862 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 60.

The spelling of 15109486630368 in words is "fifteen trillion, one hundred nine billion, four hundred eighty-six million, six hundred thirty thousand, three hundred sixty-eight".