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16378913790 = 2325181987931
BaseRepresentation
bin11110100000100001…
…00110001111111110
31120021110211000210200
433100100212033332
5232021000220130
611305132544330
71116612320151
oct172020461776
946243730720
1016378913790
116a45519398
1232113220a6
131710423b85
14b15407c98
1565cde1760
hex3d04263fe

16378913790 has 24 divisors (see below), whose sum is σ = 42585176088. Its totient is φ = 4367710320.

The previous prime is 16378913783. The next prime is 16378913791. The reversal of 16378913790 is 9731987361.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16378913791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90993876 + ... + 90994055.

It is an arithmetic number, because the mean of its divisors is an integer number (1774382337).

Almost surely, 216378913790 is an apocalyptic number.

16378913790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16378913790 is an abundant number, since it is smaller than the sum of its proper divisors (26206262298).

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

16378913790 is a wasteful number, since it uses less digits than its factorization.

16378913790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181987944 (or 181987941 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The spelling of 16378913790 in words is "sixteen billion, three hundred seventy-eight million, nine hundred thirteen thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 181987931 363975862 545963793 909939655 1091927586 1637891379 1819879310 2729818965 3275782758 5459637930 8189456895 16378913790