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18052132406 = 2711232713121
BaseRepresentation
bin10000110011111111…
…011010111000110110
31201121002021100020112
4100303333122320312
5243432321214111
612143143503022
71206230410430
oct206377327066
951532240215
1018052132406
117723a5a2a0
1235b9757a72
131918c84469
14c3371b650
15709c54e8b
hex433fdae36

18052132406 has 96 divisors (see below), whose sum is σ = 35799998976. Its totient is φ = 6630624000.

The previous prime is 18052132403. The next prime is 18052132447. The reversal of 18052132406 is 60423125081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18052132403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5782526 + ... + 5785646.

It is an arithmetic number, because the mean of its divisors is an integer number (372916656).

Almost surely, 218052132406 is an apocalyptic number.

18052132406 is a deficient number, since it is larger than the sum of its proper divisors (17747866570).

18052132406 is a wasteful number, since it uses less digits than its factorization.

18052132406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258 (or 3235 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

Adding to 18052132406 its reverse (60423125081), we get a palindrome (78475257487).

The spelling of 18052132406 in words is "eighteen billion, fifty-two million, one hundred thirty-two thousand, four hundred six".

Divisors: 1 2 7 11 14 22 23 46 71 77 142 154 161 253 322 497 506 529 781 994 1058 1562 1633 1771 3121 3266 3542 3703 5467 5819 6242 7406 10934 11431 11638 17963 21847 22862 34331 35926 37559 40733 43694 68662 71783 75118 81466 125741 143566 221591 240317 251482 262913 413149 443182 480634 502481 525826 789613 826298 1004962 1551137 1579226 1651009 2437501 2892043 3102274 3302018 4875002 5096593 5527291 5784086 10193186 11054582 11557063 17062507 18161099 23114126 34125014 35676151 36322198 56062523 71352302 112125046 117221639 127127693 234443278 254255386 392437661 784875322 820551473 1289438029 1641102946 2578876058 9026066203 18052132406