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18068676770500 = 225341081879661
BaseRepresentation
bin1000001101110111100010…
…00011110111101011000100
32100222100102011002001221021
410012323301003313223010
54332014122223124000
6102232345134400524
73543263440313326
oct406736103675304
970870364061837
1018068676770500
115836978a95424
1220399b7360144
13a10b3acb7995
14466758777616
1521501b23b11a
hex106ef10f7ac4

18068676770500 has 48 divisors (see below), whose sum is σ = 39462995518128. Its totient is φ = 7227286560000.

The previous prime is 18068676770491. The next prime is 18068676770539. The reversal of 18068676770500 is 507767686081.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 3769569805444 + 14299106965056 = 1941538^2 + 3781416^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20100670 + ... + 20980330.

It is an arithmetic number, because the mean of its divisors is an integer number (822145739961).

Almost surely, 218068676770500 is an apocalyptic number.

18068676770500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18068676770500 is an abundant number, since it is smaller than the sum of its proper divisors (21394318747628).

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

18068676770500 is a wasteful number, since it uses less digits than its factorization.

18068676770500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920761 (or 920749 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 61.

The spelling of 18068676770500 in words is "eighteen trillion, sixty-eight billion, six hundred seventy-six million, seven hundred seventy thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 41081 82162 164324 205405 410810 821620 879661 1027025 1759322 2054050 3518644 4108100 4398305 5135125 8796610 10270250 17593220 20540500 21991525 43983050 87966100 109957625 219915250 439830500 36137353541 72274707082 144549414164 180686767705 361373535410 722747070820 903433838525 1806867677050 3613735354100 4517169192625 9034338385250 18068676770500