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103081220778 = 2317180203463
BaseRepresentation
bin110000000000000011…
…1101001101010101010
3100212001220111120112210
41200000013221222222
53142102243031103
6115204352145550
710306306630314
oct1400007515252
9325056446483
10103081220778
113a797730958
1217b898382b6
139949c90bc3
144dbc36a7b4
152a349c3e03
hex18001e9aaa

103081220778 has 8 divisors (see below), whose sum is σ = 206162441568. Its totient is φ = 34360406924.

The previous prime is 103081220747. The next prime is 103081220779. The reversal of 103081220778 is 877022180301.

It is a sphenic number, since it is the product of 3 distinct primes.

103081220778 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103081220779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8590101726 + ... + 8590101737.

It is an arithmetic number, because the mean of its divisors is an integer number (25770305196).

Almost surely, 2103081220778 is an apocalyptic number.

103081220778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

103081220778 is a wasteful number, since it uses less digits than its factorization.

103081220778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17180203468.

The product of its (nonzero) digits is 37632, while the sum is 39.

The spelling of 103081220778 in words is "one hundred three billion, eighty-one million, two hundred twenty thousand, seven hundred seventy-eight".

Divisors: 1 2 3 6 17180203463 34360406926 51540610389 103081220778