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15108730488912 = 243429237333253
BaseRepresentation
bin1101101111011100011010…
…0000111000100001010000
31222111101021101221111210110
43123313012200320201100
53440020140001121122
652044504401201320
73116366266122414
oct333670640704120
958441241844713
1015108730488912
1148a5638528175
12184020b330240
138579936c8098
143a33a3232d44
151b302d09090c
hexdbdc6838850

15108730488912 has 40 divisors (see below), whose sum is σ = 39031801742304. Its totient is φ = 5036125477504.

The previous prime is 15108730488829. The next prime is 15108730488919. The reversal of 15108730488912 is 21988403780151.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15108730488919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1606323 + ... + 5726930.

Almost surely, 215108730488912 is an apocalyptic number.

15108730488912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15108730488912 is an abundant number, since it is smaller than the sum of its proper divisors (23923071253392).

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

15108730488912 is a wasteful number, since it uses less digits than its factorization.

15108730488912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7376187 (or 7376181 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 57.

The spelling of 15108730488912 in words is "fifteen trillion, one hundred eight billion, seven hundred thirty million, four hundred eighty-eight thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 48 42923 85846 128769 171692 257538 343384 515076 686768 1030152 2060304 7333253 14666506 21999759 29333012 43999518 58666024 87999036 117332048 175998072 351996144 314765218519 629530437038 944295655557 1259060874076 1888591311114 2518121748152 3777182622228 5036243496304 7554365244456 15108730488912