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12442502223 = 3213110553437
BaseRepresentation
bin10111001011010000…
…11000010001001111
31012010010202121021200
423211220120101033
5200440240032343
65414354000543
7620223344454
oct134550302117
935103677250
1012442502223
115305517098
1224b2b76153
131233a37868
148606c782b
154cc52c4d3
hex2e5a1844f

12442502223 has 12 divisors (see below), whose sum is σ = 18109699608. Its totient is φ = 8231680080.

The previous prime is 12442502179. The next prime is 12442502239. The reversal of 12442502223 is 32220524421.

12442502223 is a `hidden beast` number, since 12 + 4 + 425 + 0 + 2 + 223 = 666.

It is not a de Polignac number, because 12442502223 - 29 = 12442501711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442500223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5275540 + ... + 5277897.

It is an arithmetic number, because the mean of its divisors is an integer number (1509141634).

Almost surely, 212442502223 is an apocalyptic number.

12442502223 is a deficient number, since it is larger than the sum of its proper divisors (5667197385).

12442502223 is a wasteful number, since it uses less digits than its factorization.

12442502223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10553574 (or 10553571 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The spelling of 12442502223 in words is "twelve billion, four hundred forty-two million, five hundred two thousand, two hundred twenty-three".

Divisors: 1 3 9 131 393 1179 10553437 31660311 94980933 1382500247 4147500741 12442502223