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12481288044 = 2238291254653
BaseRepresentation
bin10111001111111000…
…10101011101101100
31012012211202010102120
423213330111131230
5201030202204134
65422301152540
7621204124611
oct134774253554
935184663376
1012481288044
1153253a8495
122503b5b750
13123ba97854
14865902508
154d0b3e649
hex2e7f1576c

12481288044 has 24 divisors (see below), whose sum is σ = 29158158960. Its totient is φ = 4155407424.

The previous prime is 12481288003. The next prime is 12481288051. The reversal of 12481288044 is 44088218421.

It is a junction number, because it is equal to n+sod(n) for n = 12481287987 and 12481288005.

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, 617379 + ... + 637274.

It is an arithmetic number, because the mean of its divisors is an integer number (1214923290).

Almost surely, 212481288044 is an apocalyptic number.

It is an amenable number.

12481288044 is an abundant number, since it is smaller than the sum of its proper divisors (16676870916).

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

12481288044 is a wasteful number, since it uses less digits than its factorization.

12481288044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1255489 (or 1255487 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 42.

The spelling of 12481288044 in words is "twelve billion, four hundred eighty-one million, two hundred eighty-eight thousand, forty-four".

Divisors: 1 2 3 4 6 12 829 1658 2487 3316 4974 9948 1254653 2509306 3763959 5018612 7527918 15055836 1040107337 2080214674 3120322011 4160429348 6240644022 12481288044