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18852155058 = 23119717916451
BaseRepresentation
bin10001100011101011…
…010000111010110010
31210122211122201000010
4101203223100322302
5302102122430213
612354403035350
71235113450122
oct214353207262
953584581003
1018852155058
117aa4606140
1237a166bb56
131a15944749
14caba90c82
157550d3ac3
hex463ad0eb2

18852155058 has 64 divisors (see below), whose sum is σ = 41790712320. Its totient is φ = 5621952000.

The previous prime is 18852155033. The next prime is 18852155089. The reversal of 18852155058 is 85055125881.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18852154998 and 18852155016.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1137733 + ... + 1154183.

It is an arithmetic number, because the mean of its divisors is an integer number (652979880).

Almost surely, 218852155058 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18852155058, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20895356160).

18852155058 is an abundant number, since it is smaller than the sum of its proper divisors (22938557262).

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

18852155058 is a wasteful number, since it uses less digits than its factorization.

18852155058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16743.

The product of its (nonzero) digits is 640000, while the sum is 48.

The spelling of 18852155058 in words is "eighteen billion, eight hundred fifty-two million, one hundred fifty-five thousand, fifty-eight".

Divisors: 1 2 3 6 11 22 33 66 97 179 194 291 358 537 582 1067 1074 1969 2134 3201 3938 5907 6402 11814 16451 17363 32902 34726 49353 52089 98706 104178 180961 190993 361922 381986 542883 572979 1085766 1145958 1595747 2944729 3191494 4787241 5889458 8834187 9574482 17553217 17668374 32392019 35106434 52659651 64784038 97176057 105319302 194352114 285638713 571277426 856916139 1713832278 3142025843 6284051686 9426077529 18852155058