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18594441242 = 21337533471051
BaseRepresentation
bin10001010100010100…
…001010100000011010
31202222212201111002222
4101110110022200122
5301040134104432
612313035224042
71225534066646
oct212424124032
952885644088
1018594441242
117982093a13
12372b2a8022
1319a4430c70
14c85767c26
1573c679112
hex45450a81a

18594441242 has 64 divisors (see below), whose sum is σ = 31551617664. Its totient is φ = 8161171200.

The previous prime is 18594441233. The next prime is 18594441253. The reversal of 18594441242 is 24214449581.

It is a junction number, because it is equal to n+sod(n) for n = 18594441193 and 18594441202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17691617 + ... + 17692667.

It is an arithmetic number, because the mean of its divisors is an integer number (492994026).

Almost surely, 218594441242 is an apocalyptic number.

18594441242 is a deficient number, since it is larger than the sum of its proper divisors (12957176422).

18594441242 is a wasteful number, since it uses less digits than its factorization.

18594441242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503.

The product of its digits is 368640, while the sum is 44.

The spelling of 18594441242 in words is "eighteen billion, five hundred ninety-four million, four hundred forty-one thousand, two hundred forty-two".

Divisors: 1 2 13 26 37 53 74 106 347 481 689 694 962 1051 1378 1961 2102 3922 4511 9022 12839 13663 18391 25493 25678 27326 36782 38887 50986 55703 77774 111406 166907 239083 333814 364697 478166 505531 680467 724139 729394 1011062 1360934 1448278 2061011 4122022 4741061 8846071 9482122 13493789 17692142 19328941 26793143 26987578 38657882 53586286 175419257 251276233 350838514 502552466 715170817 1430341634 9297220621 18594441242