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12199780608 = 28338034177
BaseRepresentation
bin10110101110010100…
…11110000100000000
31011111020001001211020
423113022132010000
5144441120434413
65334323345440
7611215265331
oct132712360400
934436031736
1012199780608
1151a0504814
122445822280
1311c5672cc2
1483a384288
154b6084c23
hex2d729e100

12199780608 has 72 divisors (see below), whose sum is σ = 32485520928. Its totient is φ = 4064550912.

The previous prime is 12199780597. The next prime is 12199780633. The reversal of 12199780608 is 80608799121.

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, 2918616 + ... + 2922792.

Almost surely, 212199780608 is an apocalyptic number.

It is an amenable number.

12199780608 is an abundant number, since it is smaller than the sum of its proper divisors (20285740320).

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

12199780608 is an equidigital number, since it uses as much as digits as its factorization.

12199780608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7999 (or 7985 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 12199780608 in words is "twelve billion, one hundred ninety-nine million, seven hundred eighty thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 768 3803 4177 7606 8354 11409 12531 15212 16708 22818 25062 30424 33416 45636 50124 60848 66832 91272 100248 121696 133664 182544 200496 243392 267328 365088 400992 486784 534656 730176 801984 973568 1069312 1460352 1603968 2920704 3207936 15885131 31770262 47655393 63540524 95310786 127081048 190621572 254162096 381243144 508324192 762486288 1016648384 1524972576 2033296768 3049945152 4066593536 6099890304 12199780608