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18858410513422 = 271212216258221
BaseRepresentation
bin1000100100110110100001…
…10111000001010000001110
32110202211212001102220202021
410102123100313001100032
54432434011042412142
6104035233441320354
73654321664341604
oct422332067012016
973684761386667
1018858410513422
116010897108237
122146a776360ba
13a6a45706190c
14492a7546b874
1522a83d0c9267
hex1126d0dc140e

18858410513422 has 16 divisors (see below), whose sum is σ = 28687389253344. Its totient is φ = 9295959988000.

The previous prime is 18858410513413. The next prime is 18858410513431. The reversal of 18858410513422 is 22431501485881.

It is an interprime number because it is at equal distance from previous prime (18858410513413) and next prime (18858410513431).

It is a self number, because there is not a number n which added to its sum of digits gives 18858410513422.

It is a congruent number.

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, 115729 + ... + 6142492.

It is an arithmetic number, because the mean of its divisors is an integer number (1792961828334).

Almost surely, 218858410513422 is an apocalyptic number.

18858410513422 is a deficient number, since it is larger than the sum of its proper divisors (9828978739922).

18858410513422 is a wasteful number, since it uses less digits than its factorization.

18858410513422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6279515.

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 18858410513422 in words is "eighteen trillion, eight hundred fifty-eight billion, four hundred ten million, five hundred thirteen thousand, four hundred twenty-two".

Divisors: 1 2 71 142 21221 42442 1506691 3013382 6258221 12516442 444333691 888667382 132805707841 265611415682 9429205256711 18858410513422