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12906788144 = 2417371282471
BaseRepresentation
bin11000000010100110…
…11111010100110000
31020022111101202211112
430001103133110300
5202413114210034
65532421132452
7634561613645
oct140123372460
936274352745
1012906788144
1155235aaa68
12260255a128
1312a8c96b63
148a6223dcc
1550818d7ce
hex3014df530

12906788144 has 40 divisors (see below), whose sum is σ = 27193536288. Its totient is φ = 5909621760.

The previous prime is 12906788119. The next prime is 12906788159. The reversal of 12906788144 is 44188760921.

It is a junction number, because it is equal to n+sod(n) for n = 12906788092 and 12906788101.

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, 631172 + ... + 651299.

Almost surely, 212906788144 is an apocalyptic number.

It is an amenable number.

12906788144 is an abundant number, since it is smaller than the sum of its proper divisors (14286748144).

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

12906788144 is a wasteful number, since it uses less digits than its factorization.

12906788144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282533 (or 1282527 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 12906788144 in words is "twelve billion, nine hundred six million, seven hundred eighty-eight thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 17 34 37 68 74 136 148 272 296 592 629 1258 2516 5032 10064 1282471 2564942 5129884 10259768 20519536 21802007 43604014 47451427 87208028 94902854 174416056 189805708 348832112 379611416 759222832 806674259 1613348518 3226697036 6453394072 12906788144