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18672033700 = 2252953195929
BaseRepresentation
bin10001011000111100…
…001001111110100100
31210012021201120221201
4101120330021332210
5301220020034300
612324450252244
71230465445015
oct213074117644
953167646851
1018672033700
117a11970311
123751287084
1319b752a568
14c91ba500c
157443a466a
hex458f09fa4

18672033700 has 36 divisors (see below), whose sum is σ = 40561036740. Its totient is φ = 7460938240.

The previous prime is 18672033689. The next prime is 18672033767. The reversal of 18672033700 is 733027681.

It can be written as a sum of positive squares in 6 ways, for example, as 1956646756 + 16715386944 = 44234^2 + 129288^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18672033700.

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 11 ways as a sum of consecutive naturals, for example, 2665 + ... + 193264.

It is an arithmetic number, because the mean of its divisors is an integer number (1126695465).

Almost surely, 218672033700 is an apocalyptic number.

18672033700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18672033700 is an abundant number, since it is smaller than the sum of its proper divisors (21889003040).

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

18672033700 is a wasteful number, since it uses less digits than its factorization.

18672033700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196896 (or 196889 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 18672033700 in words is "eighteen billion, six hundred seventy-two million, thirty-three thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 953 1906 3812 4765 9530 19060 23825 47650 95300 195929 391858 783716 979645 1959290 3918580 4898225 9796450 19592900 186720337 373440674 746881348 933601685 1867203370 3734406740 4668008425 9336016850 18672033700