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12019090909384 = 2313526121966961
BaseRepresentation
bin1010111011100110100110…
…1001001110100011001000
31120120000101002222210011101
42232321221221032203020
53033410044233100014
641321254422311144
72350231164036316
oct256715151164310
946500332883141
1012019090909384
1139142a4532669
1214214692884b4
1369251a93a180
142d7a2725d0b6
1515c99de66474
hexaee69a4e8c8

12019090909384 has 32 divisors (see below), whose sum is σ = 24273932349240. Its totient is φ = 5546218060800.

The previous prime is 12019090909367. The next prime is 12019090909391. The reversal of 12019090909384 is 48390909091021.

12019090909384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10336160700100 + 1682930209284 = 3214990^2 + 1297278^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10436337 + ... + 11530624.

Almost surely, 212019090909384 is an apocalyptic number.

It is an amenable number.

12019090909384 is an abundant number, since it is smaller than the sum of its proper divisors (12254841439856).

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

12019090909384 is a wasteful number, since it uses less digits than its factorization.

12019090909384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21972241 (or 21972237 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 12019090909384 in words is "twelve trillion, nineteen billion, ninety million, nine hundred nine thousand, three hundred eighty-four".

Divisors: 1 2 4 8 13 26 52 104 5261 10522 21044 42088 68393 136786 273572 547144 21966961 43933922 87867844 175735688 285570493 571140986 1142281972 2284563944 115568181821 231136363642 462272727284 924545454568 1502386363673 3004772727346 6009545454692 12019090909384